Mark the reaction among the following that does not give benzoic acid as the major product:

1.
2.
3.
4.

Which structure(s) of proteins remains(s) intact during denaturation process?

1. Both secondary and tertiary structures

2. Primary structure only

3. Secondary structure only

4. Tertiary structure only

The polymer that is used as a substitute for wool in making commercial fibres is -

1. Melamine

2. Nylon-6, 6

3. Polyacrylonitrile

4. Buna-N
 

The artificial sweetener stable at cooking temperature that does not provide calories is-

1. Saccharin

2. Aspartame

3. Sucralose

4. Alitame

The liquefied gas that is used in dry cleaning along with a suitable detergent is-

1. Water gas

2. Petroleum gas

3. NO₂

4. CO₂

Which of the following is produced when the vapours of secondary alcohol are passed over heated copper at 573 K?

The major products C and D formed in the following reaction respectively are:
\(CH_3CH_2CH_2OC{(CH_3)}_3 \xrightarrow[\Delta]{\text{Excess}\ HI}\ C + D\)

1. ${\mathrm{}}_{}$H₃C-CH₂-CH₂-I  and I-C(CH₃)₃

2. H₃C-CH₂-CH₂-OH  and I-C(CH₃)₃

3. H₃C-CH₂-CH₂-I  and HO-C(CH₃)₃

4. H₃C-CH₂-CH₂-OH  and HO-C(CH₃)₃

Match the oxide given in Column-I with its property given in Column-II:

Which of the following options is correct?