Dr. Bandhana Sharma
Dr. Bandhana Sharma
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Justify that the reaction:2Cu2O (s) + Cu2S (s) → 6Cu (s) + SO2 (g) is a redox reaction...
NCERT Problem Page no. 269 Redox Reactions
Problem 8.4:- Justify that the reaction:
2Cu2O (s) + Cu2S (s) → 6Cu (s) + SO2 (g) is a redox reaction. Identify the species oxidised/ reduced, which acts as an oxidant and which acts as a reductant.
zhlédnutí: 10 229

Video

Using stock notation represent following compounds: HAuCl4, Ti2O, FeO, Fe2O3, CuI, CuO, MnO and MnO26:55Using stock notation represent following compounds: HAuCl4, Ti2O, FeO, Fe2O3, CuI, CuO, MnO and MnO2
Using stock notation represent following compounds: HAuCl4, Ti2O, FeO, Fe2O3, CuI, CuO, MnO and MnO2
zhlédnutí 6KPřed rokem
NCERT Problem Page no. 269 Redox Reactions Problem 8.3:- Using stock notation, represent the following compounds: HAuCl4, Ti2O, FeO, Fe2O3, CuI, CuO, MnO and MnO2.
Justify that the reaction: 2Na (s) + H2 (g) → 2NaH (s) is a redox change.3:58Justify that the reaction: 2Na (s) + H2 (g) → 2NaH (s) is a redox change.
Justify that the reaction: 2Na (s) + H2 (g) → 2NaH (s) is a redox change.
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NCERT Problem Page no. 268 Redox Reactions Problem 8.2:- Justify that the reaction: 2Na (s) H2 (g) → 2NaH (s) is a redox change.
In the reaction given below, identify the species undergoing oxidation and reduction:9:27In the reaction given below, identify the species undergoing oxidation and reduction:
In the reaction given below, identify the species undergoing oxidation and reduction:
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NCERT Problem Page no. 256 Redox Reactions Problem 8.1:- In the reaction given below, identify the species undergoing oxidation and reduction: (i) H2S (g) Cl2 (g) → 2HCl (g) S (s) (ii) 3Fe3O4 (s) 8Al → 9Fe (s) 4Al2O3 (s) (iii) 2Na (s) H2 (g) → 2NaH (s)
What will be the molarity of a solution, which contains 5.85g of NaCl (s) per 500mL?4:37What will be the molarity of a solution, which contains 5.85g of NaCl (s) per 500mL?
What will be the molarity of a solution, which contains 5.85g of NaCl (s) per 500mL?
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NCERT Exemplar Page No. 1 Some Basic Concepts of Chemistry Problem 3:- What will be the molarity of a solution, which contains 5.85g of NaCl (s) per 500mL? (i) 4 molL-1 (ii) 20 molL-1 (iii) 0.2 molL-1 (iv) 2 molL-1
If 500mL of a 5M solution is diluted to 1500mL, what will be the molarity of the solution obtained?2:37If 500mL of a 5M solution is diluted to 1500mL, what will be the molarity of the solution obtained?
If 500mL of a 5M solution is diluted to 1500mL, what will be the molarity of the solution obtained?
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NCERT Exemplar Page No. 2 Some Basic Concepts of Chemistry Problem 4:- If 500mL of a 5M solution is diluted to 1500mL, what will be the molarity of the solution obtained? (i) 1.5M (ii) 1.66M (iii) 0.017M (iv) 1.59M
In one molal solution that contains 0.5 mole of a solute, there is (i) 500mL of solvent......3:31In one molal solution that contains 0.5 mole of a solute, there is (i) 500mL of solvent......
In one molal solution that contains 0.5 mole of a solute, there is (i) 500mL of solvent......
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NEET 2022 In one molal solution that contains 0.5 mole of a solute, there is (i) 500mL of solvent (ii) 500g of solvent (iii) 100mL of solvent (iv) 1000g of solvent
The empirical formula and molecular mass of a compound are CH2O and 180g respectively. What will...4:10The empirical formula and molecular mass of a compound are CH2O and 180g respectively. What will...
The empirical formula and molecular mass of a compound are CH2O and 180g respectively. What will...
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NCERT Exemplar Page No. 3 Some Basic Concepts of Chemistry Problem 10:- The empirical formula and molecular mass of a compound are CH2O and 180g respectively. What will be the molecular formula of the compound? (i) C9H18O9 (ii) CH2O (iii) C6H12O6 (iv) C2H4O2
If the density of a solution is 3.12 g mL^-1, the mass of 1.5mL solution in significant figures is …2:45If the density of a solution is 3.12 g mL^-1, the mass of 1.5mL solution in significant figures is …
If the density of a solution is 3.12 g mL^-1, the mass of 1.5mL solution in significant figures is …
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NCERT Exemplar Page No. 3 Some Basic Concepts of Chemistry Problem 11:- If the density of a solution is 3.12 g mL^-1, the mass of 1.5mL solution in significant figures is ………………………… (i) 4.7g (ii) 4680 X 10^-3g (iii) 4.680g (iv) 46.80g
A measured temperature on Fahrenheit scale is 200oF. What will be this reading be on Celsius scale?2:18A measured temperature on Fahrenheit scale is 200oF. What will be this reading be on Celsius scale?
A measured temperature on Fahrenheit scale is 200oF. What will be this reading be on Celsius scale?
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NCERT Exemplar Page No. 1 Some Basic Concepts of Chemistry Problem 2:- A measured temperature on Fahrenheit scale is 200oF. What will be this reading be on Celsius scale? (i) 40oC (ii) 94oC (iii) 93.3oC (iv) 30oC
What is the basic difference between the terms electron gain enthalpy and electronegativity?4:25What is the basic difference between the terms electron gain enthalpy and electronegativity?
What is the basic difference between the terms electron gain enthalpy and electronegativity?
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NCERT Problem Page No. 36 CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES Problem 3.22:- What is the basic difference between the terms electron gain enthalpy and electronegativity?
Would you expect the second electron gain enthalpy of O as positive, more negative or less....3:11Would you expect the second electron gain enthalpy of O as positive, more negative or less....
Would you expect the second electron gain enthalpy of O as positive, more negative or less....
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NCERT Problem Page No. 36 CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES Problem 3.21:- Would you expect the second electron gain enthalpy of O as positive, more negative or less negative than the first? Justify your answer.
Be2+ is isoelectronic with which of the following ions?(i) H+ (ii) Li+ (iii) Na+ (iv) Mg2+4:00Be2+ is isoelectronic with which of the following ions?(i) H+ (ii) Li+ (iii) Na+ (iv) Mg2+
Be2+ is isoelectronic with which of the following ions?(i) H+ (ii) Li+ (iii) Na+ (iv) Mg2+
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NEET Question (2014) Structure of Atom Ques:- Be2 is isoelectronic with which of the following ions? (i) H (ii) Li (iii) Na (iv) Mg2
Calculate the energy in joule corresponding to light of wavelength 45nm. (Planck's constant.......4:19Calculate the energy in joule corresponding to light of wavelength 45nm. (Planck's constant.......
Calculate the energy in joule corresponding to light of wavelength 45nm. (Planck's constant.......
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NEET Question (2014) Structure of Atom Ques:- Calculate the energy in joule corresponding to light of wavelength 45nm. (Planck's constant, h = 6.63 X 10^-34 J s, speed of light, c = 3 X 10^8 m s-1) (i) 6.67 X 10^15 (ii) 6.67 X 10^11 (iii) 4.42 X 10^-15 (iv) 4.42 X 10^-18
The value of Planck's constant is 6.63 X 10^-34 Js. The speed of light is 3 X 10^17 nm s-1.....3:22The value of Planck's constant is 6.63 X 10^-34 Js. The speed of light is 3 X 10^17 nm s-1.....
The value of Planck's constant is 6.63 X 10^-34 Js. The speed of light is 3 X 10^17 nm s-1.....
zhlédnutí 6KPřed rokem
NEET Question (2013) Structure of Atom Ques:- The value of Planck's constant is 6.63 X 10^-34 Js. The speed of light is 3 X 10^17 nm s-1. which value is closest to the wavelength in nanometre of a quantum of light with frequency of 6 X 10^15 s-1? (i) 50 (ii) 75 (iii) 10 (iv) 25
The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between....2:47The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between....
The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between....
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The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between....
A mixture of gases contains H2 and O2 gases in the ratio of 1:4 (w/w). What is the molar ratio of...5:12A mixture of gases contains H2 and O2 gases in the ratio of 1:4 (w/w). What is the molar ratio of...
A mixture of gases contains H2 and O2 gases in the ratio of 1:4 (w/w). What is the molar ratio of...
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A mixture of gases contains H2 and O2 gases in the ratio of 1:4 (w/w). What is the molar ratio of...
Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1mole of XY2 weighs6:40Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1mole of XY2 weighs
Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1mole of XY2 weighs
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Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1mole of XY2 weighs
At STP, the density of CCl4 vapour in g/L will be nearest to _____________.3:42At STP, the density of CCl4 vapour in g/L will be nearest to _____________.
At STP, the density of CCl4 vapour in g/L will be nearest to _____________.
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At STP, the density of CCl4 vapour in g/L will be nearest to .
What is the change in oxidation number of carbon in the following reaction ?3:07What is the change in oxidation number of carbon in the following reaction ?
What is the change in oxidation number of carbon in the following reaction ?
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What is the change in oxidation number of carbon in the following reaction ?
The number of protons, neutrons and electrons in 175Lu71 , respectively, are:2:47The number of protons, neutrons and electrons in 175Lu71 , respectively, are:
The number of protons, neutrons and electrons in 175Lu71 , respectively, are:
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The number of protons, neutrons and electrons in 175Lu71 , respectively, are:
An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen......5:56An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen......
An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen......
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An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen......
What would be the IUPAC name and symbol for the element with atomic number 120?1:56What would be the IUPAC name and symbol for the element with atomic number 120?
What would be the IUPAC name and symbol for the element with atomic number 120?
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What would be the IUPAC name and symbol for the element with atomic number 120?
It has been found that the pH of a 0.01M solution of an organic acid is 4.15....14:05It has been found that the pH of a 0.01M solution of an organic acid is 4.15....
It has been found that the pH of a 0.01M solution of an organic acid is 4.15....
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It has been found that the pH of a 0.01M solution of an organic acid is 4.15....
The ionization constant of phenol is 1.0 X 10^-10. What is the concentration of phenolate ion in....16:54The ionization constant of phenol is 1.0 X 10^-10. What is the concentration of phenolate ion in....
The ionization constant of phenol is 1.0 X 10^-10. What is the concentration of phenolate ion in....
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The ionization constant of phenol is 1.0 X 10^-10. What is the concentration of phenolate ion in....
The ionization constant of acetic acid is 1.74 X 10^-5. Calculate the degree of dissociation of....10:58The ionization constant of acetic acid is 1.74 X 10^-5. Calculate the degree of dissociation of....
The ionization constant of acetic acid is 1.74 X 10^-5. Calculate the degree of dissociation of....
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The ionization constant of acetic acid is 1.74 X 10^-5. Calculate the degree of dissociation of....
The ionization constant of HF, HCOOH and HCN at 298K are 6.8 X 10^-4, 1.8 X 10^-4 and 4.8 X 10^-9..8:21The ionization constant of HF, HCOOH and HCN at 298K are 6.8 X 10^-4, 1.8 X 10^-4 and 4.8 X 10^-9..
The ionization constant of HF, HCOOH and HCN at 298K are 6.8 X 10^-4, 1.8 X 10^-4 and 4.8 X 10^-9..
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The ionization constant of HF, HCOOH and HCN at 298K are 6.8 X 10^-4, 1.8 X 10^-4 and 4.8 X 10^-9..
The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.5:57The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.
The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.
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The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.
The concentration of hydrogen ion in a sample of soft drink is 3.8 X 10^-3 M. What is its pH?4:01The concentration of hydrogen ion in a sample of soft drink is 3.8 X 10^-3 M. What is its pH?
The concentration of hydrogen ion in a sample of soft drink is 3.8 X 10^-3 M. What is its pH?
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The concentration of hydrogen ion in a sample of soft drink is 3.8 X 10^-3 M. What is its pH?
Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis...6:32Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis...
Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis...
zhlédnutí 2,1KPřed 2 lety
Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis...

Komentáře

  • @RajKumar-yo4jh
    @RajKumar-yo4jh Před 6 hodinami

    Is type ka koi or ex please explain

  • @ohitollironaldo
    @ohitollironaldo Před 15 hodinami

    ❤

  • @td-phonegamerff
    @td-phonegamerff Před dnem

    😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂

  • @innocentGirl-nm4ts
    @innocentGirl-nm4ts Před dnem

    Mam ham ny tu parha ta k jab mole given ho gram malom karny k lye mole ko hm gram k sath multiplye karty hai per yaha division. Plzzz mam is ph zara samjao mujhy 🙏

  • @AnandKumar-gc4pm
    @AnandKumar-gc4pm Před dnem

    This question if pyq of jee mains

  • @somnathrath3700
    @somnathrath3700 Před dnem

    This ans is 0.033 in ncert howw

  • @zainabbee2600
    @zainabbee2600 Před dnem

    L

  • @ashwanikoundal3564
    @ashwanikoundal3564 Před 2 dny

    Thanku mam bass app ne hi full solve kar ke betaya h

  • @RiyaKumari-ze8iu
    @RiyaKumari-ze8iu Před 2 dny

    Tqs ap bohot ache se explain karte hai mam ❤❤❤

  • @Amrit-raj-2006
    @Amrit-raj-2006 Před 2 dny

    Thank you mam❤

  • @babanchaudhary4486
    @babanchaudhary4486 Před 2 dny

    It's helping me a lot ❤

  • @Rosy_12360
    @Rosy_12360 Před 3 dny

    4:53 mam, log(mn)= logm + logn hona chahiye tha formula 😅

  • @deepghosh2320
    @deepghosh2320 Před 3 dny

    Mam, why are we finding atomic mass instead of finding molecular mass?

  • @ahaeee.meghaaa
    @ahaeee.meghaaa Před 3 dny

    Thank you so much mam🥺💗

  • @NehaGodaria-fg7ht
    @NehaGodaria-fg7ht Před 3 dny

    Great explaination ever🤍🤍

  • @Kkk_324
    @Kkk_324 Před 4 dny

    Nice explaination.. Thank you ma'am ❤

  • @aayushixi
    @aayushixi Před 4 dny

    ma'am we can also directly take volume of solution as 1 L, then its mass will be 1410g, of which 69% will be HNO3. And then we can find the number of moles of HNO3, and divide it by 1 L

    • @DD-ly5jo
      @DD-ly5jo Před dnem

      Yess I did the same way 😄

  • @btw_.tanmay
    @btw_.tanmay Před 4 dny

    Thankuuu mam❤

  • @aneeshsahu7294
    @aneeshsahu7294 Před 4 dny

    I see who you are, you are my enemy, my enemy, my enemy.

    • @aayushixi
      @aayushixi Před 4 dny

      wtf bruv

    • @aneeshsahu7294
      @aneeshsahu7294 Před 4 dny

      @@aayushixi I see who you are, you are my enemy, my enemy, my enemy.

    • @aayushixi
      @aayushixi Před 4 dny

      @@aneeshsahu7294 oh, the misery! everybody wants to be my enemy

  • @T-seires..
    @T-seires.. Před 4 dny

    Sexy i want to sex yu

  • @aryaputra55662
    @aryaputra55662 Před 4 dny

    18:26 Alpha ki itni badi value rakhenge to ham log pagal Ho jaenge Kya ham log 0.07 Nahin rakh sakte?

  • @AyeshaChettri-ew7dr
    @AyeshaChettri-ew7dr Před 4 dny

    mam thanku so much for ur understanding video thanku mam ❤❤

  • @astha6306
    @astha6306 Před 4 dny

    Thankyou madam 💓💓

  • @user-ts6kt8jp4v
    @user-ts6kt8jp4v Před 4 dny

    Hnji mam division ki calculation kese krne hee je bhut tough lgti hee mam.

  • @Pro_player62
    @Pro_player62 Před 5 dny

    6.593 ka under root toh 2.56 aarha h 😩😩😩😩

  • @syedfarooqrazi1388
    @syedfarooqrazi1388 Před 5 dny

    Mam aapne 3.17 ko jab percentage ki vajah se upon 100 me likha to multiply x kyu kara vo x kaha se aaya

  • @12404ramG
    @12404ramG Před 5 dny

    Pagal aise samjha hi h kuch samjh nhi ata

  • @sweta_singh_rajput1979
    @sweta_singh_rajput1979 Před 5 dny

    Aisa teacher hona chahiye jo pura achhe se explain kare thank you miss 😍

  • @kangkanahandique2744
    @kangkanahandique2744 Před 6 dny

    Thanks you ma'am 👍 ..your explanation is so good that any can easily understand ☺️🫶

  • @kbirendra11
    @kbirendra11 Před 6 dny

    😊😊

  • @muhammadrustamkhan1687
    @muhammadrustamkhan1687 Před 6 dny

    Ma'am from where we got the 3rd hydrogen

  • @RavendraSingh-ml3zz
    @RavendraSingh-ml3zz Před 6 dny

    Thank you

  • @DivyanshiChouhan-ti5vw
    @DivyanshiChouhan-ti5vw Před 6 dny

    Thank you ma'am 😊

  • @VipinTiwari-ty5sl
    @VipinTiwari-ty5sl Před 6 dny

    Sorry mam samajh mein to aaya nahin dimag aur kharab Ho Gaya😂

  • @MaheshKumar-os4ck
    @MaheshKumar-os4ck Před 6 dny

    Best explanation 😮

  • @jmdtwmd
    @jmdtwmd Před 6 dny

    Mam 3 se 6 me jump karega ki infinity se 3 me? Aapane 3 se 6 me jump bataya hai ... So clear plz

  • @dhruvsingh5064
    @dhruvsingh5064 Před 6 dny

    😂😂😂try again plz 🙏

  • @user-ou4ij5eg7k
    @user-ou4ij5eg7k Před 7 dny

    But mam 1L=1000ml hota hai na 😢

  • @RajpratapYadav-un3eb
    @RajpratapYadav-un3eb Před 7 dny

    Kf=? Kaha se li thi mam

  • @arunashwin5902
    @arunashwin5902 Před 7 dny

    Thank you sooooo much mam....you are like oxygen to me ...pls continue to give the same type of explanation (basic level)

  • @makefuture546
    @makefuture546 Před 7 dny

    🙄😒

  • @user-vh6ux3zf4t
    @user-vh6ux3zf4t Před 7 dny

    For your kind information it's not 2.thirtythree it 2.three three being such educated person u should atleast know the basic which is being taught in 4th class

  • @user-cm4uq1zm6l
    @user-cm4uq1zm6l Před 7 dny

    In question it is asked molality of each component... But ma'am you only showed the molality of glucose, why so??

  • @sankalparockstarbandesanka6542
    @sankalparockstarbandesanka6542 Před 7 dny

    Mam we can solve the problem by using another method also it gives same answer madam is it allowed or no mam in boards..

  • @clasherinferno1319
    @clasherinferno1319 Před 8 dny

    Mdm ji r ki value kaise nikalte h

  • @SoniaKaundal-dn8tg
    @SoniaKaundal-dn8tg Před 8 dny

    Perfect, sidhe he doubt pe lga ye electure . Result doubt vanish 💨💯

  • @karangamer9118
    @karangamer9118 Před 8 dny

    Thank you ma'am Ur brilliant chemistry teacher 😊

  • @itsryanyoo7
    @itsryanyoo7 Před 8 dny

    Thankyou mam!🌷

  • @user-nv3dc3yy4i
    @user-nv3dc3yy4i Před 9 dny

    Nice

  • @ansh-sz8wr
    @ansh-sz8wr Před 9 dny

    Made chemistry easy, thnx