2531: From the third century AD when the Hun invasion ended the Roman Empire, the Indian merchants relied more and more on the
(a) African trade
(b) West-European trade
(c) South-East Asian trade
(d) Middle-Eastern trade
2532: Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively?
(a) Lithium and mercury
(b) Lithium and osmium
(c) Aluminium and osmium
(d) Aluminium and mercury
2533: Which one of the following statements regarding the levying, collecting and distribution of Income Tax is correct ?
(a) The Union levies, collects and distributes the proceeds of income tax between itself and the States
(b) The Union levies, collects and keeps all the proceeds of income tax to itself
(c) The Union levies and collects the tax but all the proceeds are distributed among the States
(d) Only the surcharge levied on income tax is shared between the Union and the States
2534: The term nishka, which meant an ornament in the Vedic period, was used in later times to denote a/an
(a) weapon
(b) agricultural implement
(c) script
(d) coin
2535: Which one of the following types of coal contains a higher percentage of carbon than the rest ?
(a) Bituminous coal
(b) Lignite
(c) Peat
(d) Anthracite