1. Conc. H2SO4
2. 10% H2SO4
3. 50% H2SO4
4. Conc. H2SO4 containing dissolved SO3
50\% H2SO4
1. Triangular
2. Pentagonal
3. Hexagonal
4. Cubic
Hexagonal
1. Zn +2NaOh →Na2ZnO2+H2↑
2. Mg +H2SO4(dil.)→MgSO4+H2↑
3. NaH +H2O→NaOH+H2↑
4. 2 Al +2KOH+2H2O→2KAlO2+3H2↑
2 Al +2KOH+2H2O→2KAlO2+3H2↑
1. Bleaching
2. Oxidation
3. Reduction
4. Dehydration
Dehydration
1. 20
2. 2
3. 22.4
4. 44.8
20
1. One proton & one neutron
2. One proton & no neutron
3. Two protons and one neutron
4. one proton and two neutrons
One proton & no neutron
1. Saline lakes
2. Polar ice and glaciers
3. Atmospheric water vapour
4. Oceans
Oceans
1. Dihydrogen
2. Dioxygen
3. Dinitrogen
4. Silicon
Dihydrogen
1. Group IA and II A
2. Group VI A and VII A
3. d – block
4. Zero group
Group IA and II A
1. As tracer in the study of mechanism of reactions
2. For filling balloons
3. As a reducing agent in extraction of metals
4. In synthesis of rubber
As tracer in the study of mechanism of reactions