3726: Consider the following statements :
1. Caffeine, a constituent of tea and coffee is a diuretic.
2. Citric acid is used in soft drinks.
3. Ascorbic acid is essential for the formation of bones and teeth.
4. Citric acid is a good substitution for ascorbic acid in our nutrition.
Which of the statements given above are correct ?
(a) 1 and 2, only
(b) 1, 2 and 3, only
(c) 3 and 4 only
(d) 1, 2, 3 and 4
3727: Which one of the following was given to King Charles II as part of his dowry on the occasion of his marriage with Queen Catherina of Braganz?
(a) Bombay
(b) Chandranagore
(c) Cochin
(d) Tranquebar
3728: The approximate representation of land use classification in India is
(a) Net are sown 25%, forests 33% other areas 42%
(b) Net are sown 58%, forests 17% other areas 25%
(c) Net are sown 43%, forests 29% other areas 28%
(d) Net are sown 47%, forests 23% other areas 30%
3729: Seasons on the Earth are caused due to
(a) The elliptical orbit of the Earth
(b) Alteration/change in the speed of revolution of the Earth
(c) Inclination of the Earth on its axis of rotation
(d) Differences in the amount of energy received from the Sun
3730: Match List I (Oxdiation number) with List II (The element) and select the correct answer using the codes given below this lists:
List I List II
(Oxidation number) (The element)
A. 2 1. Oxidation number of Mn in MnO2
B. 3 2. Oxidation number of S in H2S2O7
C. 4 3. Oxidation number of Ca in CaO2
D. 6 4. Oxidation number of Al in NaAIH4
Codes:
A B C D
(a) 3 4 1 2
(b) 4 3 1 2
(c) 3 4 2 1
(d) 4 3 2 1