Class10th Chemistry Chapter 4


Total Marks: 12

1. Hydrocarbons are
Only carbon containing compounds C and H containing compounds C, H and at least one electronegative atom containing compounds None of them
2. Hydrocarbons are
Alkanes Alkenes Alkynes All of them
3. On the basis of type of bound present between carbon atoms, hydrocarbons are of
Two types Three types Four types Five types
4. In saturated hydrocarbons
Only single covalent bonds are present Single and double covalent bonds are present Double and triple covalent bonds are present Single, double and triple covalent bonds are present
5. In un-saturated hydrocarbons
Only single covalent bonds are present Single and double covalent bonds are present Double and triple covalent bonds are present Single, double and triple covalent bonds are present
6. Saturated hydrocarbons are
Alkanes Alkenes Alkynes Both a and b
7. General formula for alkanes is
CnH2n+2 CnH2n CnH2n-2 None of them
8. Hydrocarbons are non-polar due to
High electronegativity difference between C and H Low electronegativity difference between C and H Both a and b Both a and b
9. In alkanes the carbon atoms are linked together by
Single covalent bond Double covalent bond Triple covalent bond All of the above
10. According to like dissolve like rule polar compounds are soluble in
Polar solvents Non-polar solvents Both a and b None of them
11. Hydrocarbons (non-polar organic compounds) are soluble in
Methanol Ethanol Benzene Both a and b
12. General formula for alkenes is
CnH2n+2 CnH2n CnH2n-2 None of them