Q. The most electronegative element among the following is

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Q. The metal used to recover copper from a solution of copper sulphate is

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Q. The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

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Q. The metallurgical process in which a metal is obtained in a fused state is called

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Q. The molecules of which gas have highest speed?

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Q. The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called

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Q. The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is

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Q. The main buffer system of the human blood is

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Q. The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is

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Q. The most commonly used bleaching agent is

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Q. The nucleus of a hydrogen atom consists of

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Q. The heat required to raise the temperature of body by 1 K is called

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Q. The nuclear particles which are assumed to hold the nucleons together are

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Q. The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

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Q. The octane number of zero is assigned to

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Q. The metal that is used as a catalyst in the hydrogenation of oils is

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Q. The most abundant rare gas in the atmosphere is

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Q. The Latin word formica means ant. The name formic acid is derived from this Latin word because

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Q. The ore which is found in abundance in India is

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Q. The inherited traits of an organism are controlled by

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