Questions

Elements A, B and C occur as Dobereiners triads. If the atomic mass of A is 7 and that of C is 39, what will be the atomic mass of B?

What  is  the  number  of  atoms  in  46  g  of sodium-23 (N = Avogadro constant)?

If 4 * 5 % 3 = 8000 and 2 * 3 % 2 = 36, then 4 * 3 % 3 = ?

If a mirror is placed on the line MN, then which of the answer figures is the right image of the given figure?

Who is the author of the Indian English Novel 'No Other World' published in 2017?

Who Invented Laser?

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Tempestuous

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

barking up the wrong tree