Chemistry Quiz - 1, General Knowledge
25 Questions MCQ Test General Knowledge | Chemistry Quiz - 1, General Knowledge
The nucleus of an atom consists of
The number of moles of solute present in 1 kg of a solvent is called its
The most electronegative element among the following is
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of
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+
The metal used to recover copper from a solution of copper sulphate is
The metallurgical process in which a metal is obtained in a fused state is called
The molecules of which gas have highest speed?
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
The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is
The main buffer system of the human blood is
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
The most commonly used bleaching agent is
The nucleus of a hydrogen atom consists of
The heat required to raise the temperature of body by 1 K is called
The nuclear particles which are assumed to hold the nucleons together are
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is
The octane number of zero is assigned to
The metal that is used as a catalyst in the hydrogenation of oils is
The most abundant rare gas in the atmosphere is
The Latin word formica means ant. The name formic acid is derived from this Latin word because
The ore which is found in abundance in India is
The inherited traits of an organism are controlled by
The heat energy produced when the human body metabolises 1 gram of fat is
What are the number of moles of CO2 which contains 16 g of oxygen?
The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of
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