Most Important chemistry part 2 chapter 7 Mcqs | 2nd year Chemistry Chapter no 7 Mcqs

Описание: After watching this video, you will learn about the most important MCQs of 12th Chemistry Chapter 5 mcqs with answers.
#FSC#2ndyearchemistry#chemistrymcqs
. The state of hybridization of carbon atom in methane is:
A. sp3

B. sp2

C. sp

D. dsp2

Correct Answer: sp3

2. The chemist who synthesized urea from ammonium cyanate was:

A. Brezelius

B. Kolbe

C. Wholer

D. Lavoisier

Correct Answer: Wholer

3. Which set of hybrid orbitals has planar triangular shape:

A. sp3

B. sp

C. sp2

D. dsp2

Correct Answer: sp2

4. The reaction of C8H18------------ C3H6 + fragments is:

A. Catalytics oxidation

B. Isomerization

C. Synthesis

D. cracking

Correct Answer: cracking

5. The octane number is 100% in petroleum:

A. Neo-octane

B. n-Hexane

C. neo-pentane

D. Iso-octane

Correct Answer: Iso-octane
6. Concept of octane number was introduced by:

A. Kekule

B. Edgar

C. Wholer

D. Dalton

Correct Answer: Edgar

7. Which of the following form of coal has maximum %age of carbon:

A. peat

B. Bituminous

C. Sub-bituminous

D. Anthracite

Correct Answer: Anthracite

8. Which of the following is the use of light naptha:

A. non-polar solvent

B. lubricant

C. Roofing

D. Polar Solute

Correct Answer: non-polar solvent

9. The carbon atom of HCHO (methanol, formaldehyde) is:

A. sp hybridized

B. sp2 hybridized

C. sp3 hybridized

D. Not hybridized

Correct Answer: sp2 hybridized

10. A double bond consists of:

A. Two sigma bonds

B. one sigma and one pi bond

C. One sign=ma and two pi-bond

D. two pi-bond

Correct Answer: one sigma and one pi bond

11. Alkanoic acid is another name of:

A. Aldehyde

B. ketones

C. carboxylic acid

D. Alcohols

Correct Answer: carboxylic acid

12. An isomer of ethanol is:

A. Dimethyl ether

B. Diethyl ether

C. Ethylene glycol

D. Methanol

Correct Answer: Dimethyl ether

13. Ethers shows the phenomena of :

A. Position isomerism

B. Functional group isomerism

C. Metamerism

D. Cis-trans isomerism

Correct Answer: Metamerism

14. Isomerism exhibited by the ethanol and dimethyl ether is :

A. position isomerism

B. Metamerism

C. Functional group isomerism

D. Chain isomerism

Correct Answer: Functional group isomerism

15. Which one of the following does not show geometric isomerism?

A. CIHC=CHCI

B. H3C-HC=CHCH3

C. H2C=CHCI

D. BrCIC=CCIBr

Correct Answer: H2C=CHCI