If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Chemistry (~15%) — quick quiz

5 real NDA questions on Chemistry (~15%). Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

MEDIUM

The valency of an element is 3 and its atomic number is 13. How many electrons are present in the outermost shell of its atom?