Day 452: MHT-CET Chemistry

1. A.
   Hydrazine: NH2-NH2
2. B.
   Semicarbazide: NH2-NH-CO-NH2
3. C.
   Phenylhydrazine: C6H5-NH-NH-C6H5
4. D.
   Hydroxylamine: NH2-OH

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1. A.
   o-nitrophenol
2. B.
   p-nitrophenol
3. C.
   2,4,6-trinitrophenol
4. D.
   Mixture of ortho and para-nitrophenol

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1. A.
   $\alpha$-D-glucose.
2. B.
   $\beta$-D-glucose.
3. C.
   $\alpha$-L-glucose
4. D.
   $\beta$-L-glucose

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1. A.
   The driving and opposing forces differ by large amount.
2. B.
   The process can be reversed by infinitesimal change in pressure.
3. C.
   A reversible process occurs very slowly.
4. D.
   The system attains mechanical equilibrium at the end of every step

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1. A.
   Electrolysis of warm aqueous solution of barium hydroxide using nickel electrodes yields pure dihydrogen ( $> 99.5\%$ purity).
2. B.
   Action of NaOH on zinc
3. C.
   From hydrocarbons
4. D.
   Electrolysis of warm ${BaSO}_{4}$ solution

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