Chemistry Mcqs XII [300 MCQS All Chapters] Online Test 17

XII Chemistry Online Mcqs - All Chapters - Online Mcqs Test - 17

Chemistry Online Mcqs Test for class 12, Second Year, According to Karachi Board 300 Online Multiple Choice Questions

Q1. Cracking is also termed as

• Pyrolysis
• Refining
• Polymerization
• Hydrohalogenation

Next >>

Q2. Tetraethyl lead is used as

• Knocking agent
• Catalyting agent
• Anti Knocking agent
• Reforming agent

<< Prev

Next >>

Q3. The quality of petroleum is determined by

• Decane number
• Octane number
• Hexane number
• None

<< Prev

Next >>

Q4. Diesel oil is a mixture of hydrocarbons containing carbon atoms

• 13—30
• 13—20
• 13—25
• 13—18

<< Prev

Next >>

Q5. Gasoline is a mixture of hydrocarbons containing carbon atoms

• 5 – 10
• 5 – 8
• 5 – 13
• 5 – 11

<< Prev

Next >>

Q6. Its major constituents are hydrogen (50%), methane (35%) and carbon monoxide (8%)?

• Coke
• Coal gas
• Coal tar
• None

<< Prev

Next >>

Q7. The distillation of coal at high temperature and in absence of air is called

• Vacuum distillation
• Normal distillation
• Fractional distillation
• Destructive distillation

<< Prev

Next >>

Q8. Removal of one hydrogen atom from alkane produces a group called

• Alkene
• Alkyne
• Alkyl
• Alkane

<< Prev

Next >>

Q9. Paraffin’s are the type of hydrocarbons which are

• Benzonoid
• Non Benzonoid
• Closed chain
• Open chain

<< Prev

Next >>

Q10. The smallest known cyclic hydrocarbon is

• Cyclopropane
• Cyclobutane
• Cyclopentane
• Cycioheptane

<< Prev

Finish!

Next Online Test

Return Index Page

Status Bar

Take a Quiz Again