Questions

Atomic numbers of four elements are as follows : F(9), P(15), Cl(17), Ar(18). Which of the following two elements would be chemically similar?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
It is mainly due to Peter's lethargy that the plan fell _____.

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Intrepid

Which vaccine is primarily used against tuberculosis?

In human beings, the respiratory pigment is

The Scientists from China have successfully cloned which animal for the first time?

Thermal electricity is generated by using which of these ?

If 60% of the students in a school are boys and number of girls is 812, how many boys are there in the school?