The number of moles of solute present in 1 kg of a solvent is called its
molality
2 of 20
The most electronegative element among the following is
fluorine
3 of 20
The metal used to recover copper from a solution of copper sulphate is
Fe
4 of 20
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of
p-electrons in CI(Z = 17)
5 of 20
The metallurgical process in which a metal is obtained in a fused state is called
smelting
6 of 20
The molecules of which gas have highest speed?
H2 at -73oC
7 of 20
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
igneous rocks
8 of 20
The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is
Henry's law
9 of 20
The main buffer system of the human blood is
H2CO3 - HCO3
10 of 20
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
ozone
11 of 20
The most commonly used bleaching agent is
chlorine
12 of 20
The nucleus of a hydrogen atom consists of
1 proton only
13 of 20
. The heat required to raise the temperature of body by 1 K is called
thermal capacity
14 of 20
The nuclear particles which are assumed to hold the nucleons together are
mesons
15 of 20
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is
3.05 gram
16 of 20
The octane number of zero is assigned to
n-heptane
17 of 20
The metal that is used as a catalyst in the hydrogenation of oils is
Ni
18 of 20
The most abundant rare gas in the atmosphere is
Ar
19 of 20
The inherited traits of an organism are controlled by
DNA molecules
20 of 20
Other cards in this set
Card 2
Front
The number of moles of solute present in 1 kg of a solvent is called its
Back
molality
Card 3
Front
The most electronegative element among the following is
Back
Card 4
Front
The metal used to recover copper from a solution of copper sulphate is
Back
Card 5
Front
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of
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