1. 2.76
2. 1.75
3. 3.86
4. zero
zero
1. CH3COONa, CH3OCH3
2. C2H5OC2H5, C2H5COOC2H5
3. C2H5ONa, C2H5OC2H5
4. C2H5OH, C2H5OC2H5
C<sub>2</sub>H<sub>5</sub>ONa, C<sub>2</sub>H<sub>5</sub>OC<sub>2</sub>H<sub>5</sub>
1. Cu + Pb
2. Cu + Sn
3. Cu + Zn
4. Cu + Ni
Cu + Sn
1. Al4C3
2. ZnBr2
3. C2H5MgCl
4. CaC2
CaC<sub>2</sub>
1. acetylene
2. mehtane
3. ethane
4. ethylene
ethylene
1. A is cis and B is trans
2. A is trans and B is cis
3. A and B are cis
4. A ans B are trans
A is trans and B is cis
1. 1
2. 2
3. 3
4. 4
4
1. water molecule
2. octane molecule
3. methane molecule
4. benzene molecule
benzene molecule
1. adding MnO2 toH2SO4
2. by passingCO2 into BaO2 paste in cold water
3. by adding PbO2 to an acidified KMnO4 solution
4. by adding Na2O2 to cold water
by passingCO<sub>2</sub> into BaO<sub>2</sub> paste in cold water<br>
1. NH3 > PH3 >AsH3 > SbH3
2. SbH3 > AsH3 > PH3 > NH3
3. PH3 > NH3 > AsH3 > SbH3
4. SbH3 > NH3 > AsH3 > PH3
SbH<sub>3</sub> > NH<sub>3</sub> > AsH<sub>3</sub> > PH<sub>3</sub>