601: Which one of the following statements is not correct?

(a) The presence of NaCl increases the rate of setting of Plaster of Paris

(b) Gypsum is added to the cement to slow down its rate of setting

(c) All alkaline earth metals form hydrated salts

(d) Barium and Strontium are found free in nature
602: Who among the following is the founder of World Economic forum?

(a) Klaus Schwab
(b) Paul Krugman
(c) Robert Zoellick
(d) John Kenneth Galbraith
603: Which of the following is/are among the functions of the Election Commission of India ?

I. Conduct of election for the posts of the Speaker and the Deputy Speaker, Lok Sabha and the Deputy Chairman, Rajya Sabha.

II. Conduct of election to the Corporations and Municipalities.

III. Deciding on all doubts and disputes arising out of the elections.

Select the correct answer from the codes given below.

Codes :

(a) I and II

(b) I and III

(c) II and III

(d) None of these
604: Besides proteins and carbohydrates, other elements of nutritional value found in milk include
(a) calcium, potassium and iron
(b) calcium and potassium
(c) potassium and iron
(d) calcium and iron
605: A person walking barefooted in a field feels a sharp sting and on examination two puncture marks are found on his leg. He is most probably bitten by:

(a) Poisonous snake

(b) Non-poisonous snake

(c) Scorpion

(d) Rat