1) Here A, B are both carbon compounds. The ratio of total number of orbitals involved in bonding of a molecule B and in a molecule A is
1) 4:7 2)7:4 3)2:1 4)1:2
2. Ozonalysis products of following hydrocarbons are identical
1) Ethene, ethyne 2) Ethyne, benzene 3) Ethene, benzene 4) Propene, propyne
3. x moles of acetylene gas requires 12.5 moles of oxygen gas for complete combustion. Then, x moles of acetylene, when passed through red hot copper tubes gives… moles of Benzene.
1) 1.5 2)1.6 3)0.6 4)1.2
4. The pair of functional group isomers.
1) Acetaldehyde, Acetone 2) Butanoic acid, ethyle ethanoate
3) Ethoxy ethane, methoxy propane 4) Benzene, toulene
5. Synthetic gas is formed in the reaction
6. In the following reaction of cyclic compounds is not formed in products
7. How many methyl groups are present in 2, 3 – dimethyl – heptane
1) 2 2) 8 3) 4 4) 5
8. Which of the following one is aromatic heterocyclic compound
1) Phenol 2) Benzene 3) Naphthalene 4) Pyrrole
ANSWERS: 1)2 2)2 3)2 4)2 5)4 6)4 7)3 8)4