1691: Consider the following statements:

1. Baking soda is used in fire extinguishers.
2. Quicklime is used in the manufacture of glass.
3. Gypsum is used in the manufacture of Plaster of Paris.

Which of the statements given above is/are correct ?

(a) 1 and 2

(b) 2 and 3

(c) 1 only

(d) 1, 2 and 3
1692: What is common among Madam Bhikaji Cama, M. Barkatulla, V.V.S. Iyer and M.N. Roy ?

(a) All of them were leading members of the International Communist Movement

(b) M. Barkatulla was the Prime Minister and the rest were Ministers in the Provisional Government of Free India established by a group of revolutionaries at Kabul

(c) All of them were among the prominent revolutionaries outside India operating in different countries during the Freedom Movement

(d) All of them were accused in the case relating to the throwing of a bomb on Lord Hardinge
1693: The purpose of Cripps Mission was:

(a) To give India dominion status.

(b) To introduce provincial autonomy in India.

(c) To discuss future setup for India on the basis of the Simon Commission report.

(d) To suppress Quit India Movement.
1694: What is the correct sequence of the following in a heart attack ?

I. Narrowing of the inner orifice of the vessel

II. Plaque from fibrous tissue and high cholesterol

III. Inadequate supply of blood and oxygen

IV. Clots of blood carried into the coronary arteries.

Choose the answer from the codes given below :

Codes:

(a) I, II, III, IV

(b) II, IV, I, III

(c) II, III, I, IV

(d) IV, II, I, III
1695: Photo chemical smog is a resultant of the reaction among.

(a) NO2, O3 and peroxyacetyl nitrate in the presence of sunlight

(b) CO, O2 and peroxyacetyl nitrate in the presence of sunlight

(c) CO, CO2 and NO2 at low temperature

(d) High concentration of NO2, O3 and CO in the evening