AFMC2011

In which of the following, the entropy decreases

In which of the following, the entropy decreases Options (a) Crystallisation of sucrose from solution (b) Rusting of iron (c)…

Which of the following does not contain aluminium

Which of the following does not contain aluminium Options (a) Cryolite (b) Fluorspar (c) Feldspar (d) Mica Correct Answer: FluorsparExplanation:No…

After tow hours, the ratioactive substance becomes 1/16th of original amount

After tow hours, the ratioactive substance becomes 1/16th of original amount. Then the half -life (in min) is Options (a)…