2226: The stones formed in human kidney consist mostly of
(a) calcium oxalate
(b) sodium acetate
(c) magnesium sulphate
(d) calcium
2227: Consider the following statements regarding haemoglobin
1. It contains iron
2. It is a carrier of oxygen in the blood
3. It imparts red color to the blood
4. It provides immunity against certain diseases.
Of these statements
(a) 1, 2 and 4 are correct
(b) 1, 2 and 3 are correct
(c) 1, 3 and 4 are correct
(d) 2, 3 and 4 are correct
2228: Galvanising of sheet iron is done by dipping the sheet metal into molten
(a) Mercury
(b) Cadmium
(c) Lead
(d) Zinc
2229: Which of the following were common to both Buddhism and Jainism ?
I. Avoidance of extremities of penance and enjoyment.
II. Indifference to the authority of the Vedas
III. Denial of efficacy of rituals
IV. Non-injury to animal life
Select the correct answer using the codes given below :
Codes:
(a) I, II, III and IV
(b) II, III and IV
(c) I, III and IV
(d) I and II
2230: Four different candles, which can last for 5 hours, 4 hours. 3 hours and 2 hours of burning, respectively, are lit in a room at the same instant and allowed to burn till such time that the three candles in the room get extinguished. The cost of burning each one of these candles is 75 paise per hour. The cost involved is:
(a) Rs. 2.75
(b) Rs. 3.75
(c) Rs. 9.75
(d) Rs. 12.50