3251: Which of the following chemicals in automobile-exhaust can cause cancer?
(a) Carbon monoxide
(b) Polycyclic hydrocarbons
(c) Lead
(d) Oxides of nitrogen
3252: Which one of the following non-metals is not a poor conductor of electricity?
(a) Bromine
(b) Sulphur
(c) Phosphorus
(d) Selenium
3253: Consider the following statements:
1. The 44th Amendment to the Constitution of India introduced an Article placing the election of the Prime Minister beyond judicial review.
2. The Supreme Court of India struck down the 99th Amendment to the Constitution of India as being violative of the independence of judiciary.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
3254: Which one of the following does not contain silver?
(a) German silver
(b) Lunar caustic
(c) Horn Silver
(d) Ruby silver
3255: Which of the following was the main reason of the downfall of Mauryan empire ?
(a) Weak successors of Ashoka who could not control the empire properly
(b) Religious policy of Ashoka
(c) Ashoka maintained friendly relations with his neighbours
(d) None of the above