UPSC Prelims Mini Mock Test: 350

Due to the process called vulcanization, the sticky natural rubber become stiff and more durable. Why?

The short polymer chains of natural rubber are converted into long polymer chains

The long polymer chains of natural rubber are broken into short polymer chains

Cross Links are formed between the polymer chains

The natural rubber loses water and some other substances which make it sticky

The highest daily temperature on earth is not recorded at 1200 hours during summer. What could be the most correct explanation to this?

The specific heat of Land is more than water

The land takes substantial time to get heated in comparison to it gets cooled

Atmosphere does not get heated directly by Sun's radiation

None of the above is a correct explanation

Which among the following is / are features of the Post-Gupta society of India?

Select the correct option from the codes given below:

Only 1, 2 & 3

Only 1, 3 & 4

Only 2, 3 & 4

1, 2, 3 & 4

Consider the following kingdoms:

Which of the above are associated with Sangam Literature?

1, 2 & 3 Only

2, 3 & 4 Only

1, 3 & 4 Only

1, 2, 3 & 4

Consider the following statements about the proposed Rail Development Authority:

Which of the above statements is/are correct?

1 & 2 Only

3 Only

2 & 3 Only

1, 2 & 3