Chemistry concepts by Dr Krishna Rani

Hi, I'm Dr Krishna Rani from Kota, Rajasthan. Retired professor of Chemistry and principal, college education. I have 48+ years of teaching experience with Hindi & English speaking students preparing for competitive exams - JEE/NEET/NET. I am here to share my love for this subject with you all.


Chemistry concepts by Dr Krishna Rani

Q. Mass of two moles of NaCl is —— - -
( gm atomic mass of Na is 23 gm and gm atomic mass of Cl is 35.5 gm)

2 days ago | [YT] | 28

Chemistry concepts by Dr Krishna Rani

Q. Caustic potash is

3 days ago | [YT] | 39

Chemistry concepts by Dr Krishna Rani

Q. Quick lime is

3 days ago | [YT] | 36

Chemistry concepts by Dr Krishna Rani

Q. Philosopher’s wool is

3 days ago | [YT] | 34

Chemistry concepts by Dr Krishna Rani

Q. CH3 COCH2CH2CH3 and CH3 CO CH(CH3)2 have isomerism

4 days ago | [YT] | 22

Chemistry concepts by Dr Krishna Rani

Q. The hybridisation of central carbon atom in carbanion is

4 days ago | [YT] | 29

Chemistry concepts by Dr Krishna Rani

Q. Bleaching powder is CaOCl2, it is

4 days ago | [YT] | 20

Chemistry concepts by Dr Krishna Rani

Q. Aromatic ether is

1 week ago | [YT] | 11

Chemistry concepts by Dr Krishna Rani

Q. Which is an alkanoate?

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Chemistry concepts by Dr Krishna Rani

Q. During electrolysis of molten lead ( II) bromide , lead is deposited on

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