Kpk Chemistry 2014 — Solved Past Paper with Answers

Q1. Which element is not Ferromagnetic?

• A. Sb
• B. Fe
• C. Ni
• D. Co✓

Q2. Sources of SO, in the atmosphere are.

• A. Sea sprays
• B. Household activities
• C. Municipal wastes
• D. Fossil fuels✓

Explanation: Explanation will be added soon.

Q3. Is amphoteric oxide.

• A. Al2O3
• B. K2O
• C. Na2O
• D. CO2✓

Explanation: Explanation will be added soon.

Q4. Which one does not form its oxyacids?

• A. Chlorine
• B. Bromine
• C. Iodine
• D. Fluorine✓

Explanation: Explanation will be added soon.

Q5. The octet rule is not followed by

• A. Nitrogen in NH3
• B. Phosphorus in PH3
• C. Boron in BCI3
• D. Oxygen in H2O✓

Explanation: Explanation will be added soon.

Q6. It is considered a combination of fog and smoke.

• A. CFC
• B. Acid rain
• C. Smog
• D. None of these✓

Explanation: Explanation will be added soon.

Q7. Select ligand which is bidentate.

• A. CO
• B. NH3
• C. H2O
• D. None of these✓

Explanation: Explanation will be added soon.

Q8. Hydrocarbons contain.

• A. Carbon and nitrogen
• B. Carbon and hydrogen
• C. Hydrogen and oxyge
• D. Carbon and oxygen✓

Explanation: Explanation will be added soon.

Q9. BOD is used as an index of

• A. Water pollution
• B. Aerial pollution
• C. Acidity
• D. Solid waste pollution✓

Explanation: Explanation will be added soon.

Q10. SN-1 reaction completes in

• A. Four steps
• B. Three steps
• C. Single step
• D. Two steps✓

Explanation: Explanation will be added soon.

Q11. Favors substitution reaction.

• A. Alkene
• B. Alkyne
• C. Alkane
• D. None of these✓

Explanation: Explanation will be added soon.

Q12. All carbon - carbon bonds in benzene have Bond lengths.

• A. Same
• B. Different
• C. Both A and B
• D. None of these✓

Explanation: Explanation will be added soon.

Q13. Baeyer's test is used for identification of.

• A. Ketone
• B. Alkene
• C. Aldehyde
• D. Alcohol✓

Explanation: Explanation will be added soon.

Q14. May be regarded as reverse of addition reaction

• A. Substitutes
• B. Polymerization
• C. Elimination
• D. None of these✓

Explanation: Explanation will be added soon.

Q15. Wurtz s synthesis is useful for the preparation of

• A. Higher alkane
• B. Higher alkene
• C. Low alkyne
• D. Higher alkene✓

Explanation: Explanation will be added soon.

Q16. Is prepared by fermentation.

• A. Methanal
• B. Ethanol
• C. Propanol
• D. Methanol✓

Explanation: Explanation will be added soon.

Q17. He+2 is called

• A. Beta particle
• B. Deuron
• C. Alpha particle
• D. Gamma particle✓

Explanation: Explanation will be added soon.

Q18. Carbon atom inm carbonyl is Hybridized.

• A. Sp3
• B. Spd
• C. Sp2
• D. Sp✓

Explanation: Explanation will be added soon.