4451: The gas used for artificial ripening of green fruits is
(a) Carbon dioxide
(b) Ethane
(c) Hydrogen
(d) acetylene (ethyne)
4452: Which one of the following is used as an anti-freeze for the automobile engines?
(a) Propyl alcohol
(b) Ethanol
(c) Methanol
(d) Ethylene glycol
4453: When iron rusts, the weight:
(a) Increases
(b) Decreases
(c) Remains the same
(d) First increases then decreases
4454: Which one of the following was the cause of disintegration of the Mughal Empire?
(a) War of succession among sons of Aurangzeb
(b) Attacks of Nadir Shah and Ahmad Shah Abdali
(c) Revolts of various communities like Jats, Sikhs, Rajputs, etc.
(d) All of the above mentioned factors contributed to the downfall of the Mughal Empire
4455: The below table indicates the performance of India in rice and wheat production from 1950-51 to 1995-96. Which of the following conclusions arrived at from the above table would be valid ?
I. Record production of rice as well as wheat has been in 1994-95.
II. The ratio of wheat to rice production seems to have steadily increased over 16 years.
III. Wheat has not been popular among the Indian population before 1980.
IV. India became self-sufficient in rice and wheat only after 1990.
Select the correct answer using the codes given below :
Codes :
(a) I and II
(b) I, II, III and IV
(c) III and IV
(d) None of the above