Hydrogen - Topic Wise Multiple Choice Questions (MCQ)
Cracktest Topic Wise free Hydrogen MCQ for 11th 12th exam Practice Multiple Choice Questions and answer for JEE-mains State CET Engineering Entrance GATE free Online Test
6 )
H2 can be obtained from mixture of CO2&H2 by bubbling the mixture through
Water ✔
Alkaline Ca2Cl2
Conc H2SO4
Hot Nacl solution
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7 )
The metal Zn, Al, Mg, & Be are placed in different Test tubes. If NaOH is added, the metal which liberate Hydrogen gas are
Zn, Al, Mg & Be
Mg & Be
Zn & Al ✔
Zn, Al & Mg
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8 )
The type of hybridization of O in H2O & H2H2(s) is
sp3, sp3 ✔
sp2, sp3
sp3, sp2
sp3, sp
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9 )
The Only compound whose density in solid state is less if than liquid is
Sodium hydrocide
Nitric acid
phosphoras penta chloride
Water ✔
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10 )
Fishes survive in frozen lakes because
Ice floats on water
Ice acts as an insulator
The Solubility of 2 CO in water increase
a & b ✔
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