1966: The people of Hong Kong have come mostly from
(a) Vietnam
(b) China
(c) Cambodia
(d) Thailand
1967: Which one of the following statements is not correct?
(a) The presence of NaCl increases the rate of setting of Plaster of Paris
(b) Gypsum is added to the cement to slow down its rate of setting
(c) All alkaline earth metals form hydrated salts
(d) Barium and Strontium are found free in nature
1968: Which one of the following pairs of folk dance forms and states is not correctly matched ?
(a) Korku : Maharashtra
(b) Jhummar : Haryana
(c) Thali : Himachal Pradesh
(d) Mukna : Manipur
1969: A student has 60% chance of passing in English and 54% chance of passing in both English and Mathematics. What is the percentage probability that he will fail in Mathematics ?
(a) 12
(b) 36
(c) 4
(d) 10
1970: Which one of the following parts of human brain is the regulating centre for swallowing and vomiting?
(a) Pons
(b) Medulla oblongata
(c) Cerebrum
(d) Cerebellum