51.

Identify the organic compound which, on heating with strong solution of NaOH, partly converted into an acid salt and partly into alcohol

• benzyl alcohol

• acetaldehyde

• acetone

• benzaldehyde

The process by which synthesis of protein takes place based on the genetic information present in m-RNA is called

• translation

• transcription

• replication

• messenger hypothesis

Dacron is obtained by the condensation polymerisation of

• Dimethyl terephthalate and ethylene glycol

• Terephthalc acid and formaldehyde

• Phenol and phthalic acid

• Phenol and formaldehyde

4-chloro-3, 5-dimethyl phenol is called

• Chloramphenicol

• Paracetamol

• Barbital

• Dettol

The pH value of gastric juice in human stomach is about 1.8 and in the small intestine it is about 7.8. The pK_a value of aspirin is 3.5. Aspirin will be

• completely ionised in the small intestine and in the stomach

• unionised in the small intestine and in the stomach

• ionised in the small intestine and almost unionised in the stomach

• ionised in the stomach and almost unionised in the small intestine

The function of AlCl₃ in Friedel-Craft's reaction is

• to absorb HCl

• to absorb water

• to produce nucleophile

• to produce electrophile

An important reaction of acetone is autocondensation in presence of concentrated sulphuric acid to give the aromatic compound

• mesitylene

• mesityl oxide

• trioxan

• phorone

The tripeptide hormone present in most living cells is

• glutathione

• glutamine

• oxytocin

• ptyalin

Phenol $\stackrel{{\mathrm{NaNO}}_2/ {\mathrm{H}}_2{\mathrm{SO}}_4}{\to } \mathrm{B} \stackrel{{\mathrm{H}}_2\mathrm{O}}{\to } \mathrm{C} \stackrel{\mathrm{NaOH}}{\to } \mathrm{D}$

Name of the above reaction is

• Liebermann's reaction

• Phthalein fusion test

• Reimer-iemann reaction

• Schotten-Baumann reaction

Energy is stored in our body in the form of

• ATP

• ADP

• Fats

• Carbohydrates