Multiple Choice QuestionsIn context with the industrial preparation of hydrogen from water gas (CO + H2), which of the following is the correct statement?
CO and H2 are fractionally separated using differences in their densities
CO is removed by absorption in aqueous Cu2Cl2 solution
H2 is removed through occlusion with Pd
H2 is removed through occlusion with Pd
Number of hydrogen ions present in 10 milionth part of 1.33 cm3 of pure water at 25°C is
6.023 million
60 million
8.01 million
80.23 million
Some statements about heavy water are given below.
(i) Heavy water is used as moderator in nuclear reactors.
(ii) Heavy water is more associated than ordinary water.
(iii) Heavy water is more effective solvent than ordinary water.
Which of the above statements are correct?
(i) and (ii)
(i), (ii) and (iii)
(ii) and (iii)
(i) and (iii)
The heat of formation of water is 260 kJ. How much H2O is decomposed by 130 kJ of heat?
0.25 mol
1 mol
0.5 mol
2 mol
What is the quantity of hydrogen gas liberated when 46 g sodium reacts with excess ethanol? (Given atomic mass of Na = 23)
2.4 × 10-3 kg
2.0 × 10-3 kg
4.0 × 10-3 kg
2.4 × 10-2 kg
Tert-butyl methyl ether on treatment with hydrogen iodide in cold gives
tert-butyl iodide and methyl iodide
tert-butyl alcohol and methyl alcohol
tert-butyl alcohol and methyl iodide
tert-butyl iodide and methyl alcohol
What is the actual volume occupied by water molecules present in 20 cm3 of water?
20 cm3
10 cm3
40 cm3
24.89 cm3
The reaction of H2 is given below
H2 + CO + R - CH = CH2 → R - CH2
-CH2-CHO is specifically called as
hydrogenation
reduction
hydroformylation
dehydration
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