Questions

Which of the following is a characteristic of an exothermic reaction?

In a hydrogen atom, an electron moves in an orbit of radius 5.0 x 10-11 m with a speed of 2.2 x 106 m/s. What is the equivalent current? (Electronic charge = 1.6 x10-19 C)

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
dark horse

In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct.

1. "As a matter of fact", said the boy modestly,"I'm a spaceman."
P. "You can't see it from here."
Q. 'From another planet.'
R. 'I'm a spaceman', he said again.
S. John and George stared at the boy.
6. John gasped, George gave a shout of laughter.

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

The branch of philosophy concerned with the study of the principles of beauty, especially in art

In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the "No error" option.

It took her a long time(A)/to get off (B)/the death of her husband.(C)/No Error(D)

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

To burn the midnight oil

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
If she was marrying Mr. Gupta (1)/ she would have been (2)/ recognized as Mrs. Gupta. (3)/ No Error (4)