A mixture of benzaldehyde and formaldehyde when treated with 50% NaOH yields

• sodium benzoate and sodium formate

• sodium formate and benzyl alcohol

• sodium benzoate and methyl alcohol

• benzyl alcohol and methyl alcohol

42.

Reaction of which among the following ethers with HI in cold leads to the formation of methyl alcohol?

• Ethyl methyl ether

• Methyl propyl ether

• lsopropyl methyl ether

• tert-butyl methyl ether

During conversion of glucose into glucose cyanohydrin, which functional group/atom of glucose is replaced?

• Hydrogen

• Aldehydic group

• Primary alcoholic group

• Secondary alcoholic, group

What is the chemical composition of Nicol prism?

• Al₂O₃

• CaSO₄

• CaCO₃

• Na₃AlF₆

Identify the heteropolymer from the list given below.

• Polythene

• Nylon-6

• Teflon

• Nylon-6 6

The correct order of reactivity of aldehydes and ketones towards hydrogen cyanide is

• CH₃COCH₃ > CH₃CHO > HCHO

• CH₃COCH₃ > HCHO > CH₃CHO

• CH₃CHO > CH₃COCH₃ > HCHO

• HCHO > CH₃CHO > CH₃COCH₃

Which of the following proteins is globular?

• Collagen

• Albumin

• Myosin

• Fibroin

Which among the following is a tranquilizer?

• Aspirin

• Valium

• Penicillin

• Sulphanilamide

Which polymer among the following does not soften on heating?

• Bakelite

• Polythene

• Polystyrene

• PVC

Which among the following detergents is non-ionic in character?

• Sodium lauryl sulphate

• Pentaerythrityl stearate

• Cetyl trimethyl ammonium chloride

• Sodium n-dodecyl benzene sulphonate