UPPCS 2021 PYQ Test 9

Arrange the following substances in chronological order of their first synthesis in lab :

1) Black gold

2) Fullerene

3) Graphene

4) Kevlar

Select correct answer from the codes given below:

Mother’s milk provides almost complete diet to the new-born, but it lacks the following

Which of the following statements about enzymes is/are correct?

1) They are biocatalysts.

2) They perform their action on the site where they are produced.

Select the correct answer using the codes given below:

The phenomenon used in optical fibre for transmission of light energy is

A sample of any of the following substances disappears after sometime when exposed to air like camphor, naphthalene of dry ice. This phenomenon is called

Match List – I with List – II and select the correct answer from the codes given below the lists :

List – I

A) Kevlar

B) Taxol

C) Zinc Phosphide

D) Nitrocellulose

List – II

1) Explosive

2) Synthetic fibre

3) Anticancer Drug

4) Rodenticide

Codes: