4271: Which of the following events is not correct ?
(a) Simon Commission --- 1928
(b) Salt Satyagraha --- 1930
(c) Gandhi-lrwin Pact --- 1931
(d) Quit India Movement --- 1942
4272: Huangpu River flows through which one of the following cities?
(a) Beijing
(b) Shanghai
(c) Ho Chi Minh City
(d) Manila
4273: The stones formed in human kidney consist mostly of
(a) calcium oxalate
(b) sodium acetate
(c) magnesium sulphate
(d) calcium
4274: Assertion (A): The main constituent of the Liquefied Petroleum Gas is methane.
Reason (R): Methane can be used directly for burning in homes and factories where it cab be supplied through pipelines.
(a) Both A and R are individually true and R is the correct explanation of A.
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false.
(d) A is false but R is true.
4275: In the given figure, angle OQP = 30° and angle ORP = 20°, angle QOR is equal to
(a) 100°
(b) 120°
(c) 130°
(d) 140°