Chemistry Quiz - 1, General Knowledge


25 Questions MCQ Test General Knowledge | Chemistry Quiz - 1, General Knowledge


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This mock test of Chemistry Quiz - 1, General Knowledge for Current Affairs helps you for every Current Affairs entrance exam. This contains 25 Multiple Choice Questions for Current Affairs Chemistry Quiz - 1, General Knowledge (mcq) to study with solutions a complete question bank. The solved questions answers in this Chemistry Quiz - 1, General Knowledge quiz give you a good mix of easy questions and tough questions. Current Affairs students definitely take this Chemistry Quiz - 1, General Knowledge exercise for a better result in the exam. You can find other Chemistry Quiz - 1, General Knowledge extra questions, long questions & short questions for Current Affairs on EduRev as well by searching above.
QUESTION: 1

The nucleus of an atom consists of

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QUESTION: 2

The number of moles of solute present in 1 kg of a solvent is called its

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QUESTION: 3

The most electronegative element among the following is

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QUESTION: 4

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

Solution:

Electronic configuration of Fe2+ is [Ar]3d6 4s0 
therefore, Number of electrons  = 6
Mg- 1s2 2s2 2p6  (6s electrons)
It matches with the 6d electrons of Fe2+ 
Cl- 1s2 2s2 2p6 3s2 3p5 (11 p electrons)
It does not match with the 6d  electrons of Fe2+
Fe- [Ar] 3d6 4s2 (6d electrons)

It does not match with the 6d electrons of Fe2+
Ne- 1s2 2s2 2p6 3s2 3p 6 (6p electrons)
It matches with the 6d electrons of Fe2+.
Hence, Cl has 11 p electrons which do not match in number with 6d electrons of Fe2+

QUESTION: 5

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

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QUESTION: 6

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

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QUESTION: 7

The molecules of which gas have highest speed?

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QUESTION: 8

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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QUESTION: 9

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

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QUESTION: 10

The main buffer system of the human blood is

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QUESTION: 11

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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QUESTION: 12

The most commonly used bleaching agent is

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QUESTION: 13

The nucleus of a hydrogen atom consists of

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QUESTION: 14

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

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QUESTION: 15

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

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QUESTION: 16

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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QUESTION: 17

The octane number of zero is assigned to

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QUESTION: 18

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

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QUESTION: 19

The most abundant rare gas in the atmosphere is

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QUESTION: 20

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

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QUESTION: 21

The ore which is found in abundance in India is

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QUESTION: 22

The inherited traits of an organism are controlled by

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QUESTION: 23

The heat energy produced when the human body metabolises 1 gram of fat is

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QUESTION: 24

What are the number of moles of CO2 which contains 16 g of oxygen?

Solution: One mole of CO2 has mass of 44 g and 32 g of O2. So 16 g of O2 have 22 g of CO2 or 0.5 moles of it.
QUESTION: 25

The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of

Solution:

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