Chemistry Online MCQs Test 02 For Preparation

1. Which one gives a mixture of hydrocarbons on halogenations ?

A. Ethyl alcohol

B. Ethane

C. Ethene

D. Ethyne

2. Which one of the following decolorizes Br2 Water?

A. Ethene

B. Ethane

C. Propane

D. Methane

3. Which one gives carboxylic acid with alkaline KMnO4?

A. Ethane

B. Ethene

C. Acetylene

D. Methane

4. ______________ is a factor related to blood clotting?

A. Vitamin C

B. Vitamin K

C. Vitamin E

D. Vitamin A

5. The coldest region in atmosphere is ?

A. Stratosphere

B. Mesopause

C. Stratopause

D. Tropopause

6. Which of the following organic compound has different chemical properties?

A. C5H11OH

B. CH3OH

C. C2H5OH

D. C2H5COOH

7. Which one of the following reagents distinguished ethene from acetylene?

A. Alcoholic KOH

B. AgNO3

C. Carbon tetrachloride solution

D. Bromine solution

8. The vital function of protoplasm is due to the presence of ?

A. Water

B. Fats

C. Calcium

D. Minerals

9. Ethene reacts with HBr, the compound formed is?

A. Br-CH2-CH2-Br

B. CH3-CH2-Br

C. CH3-CH2-CH3

D. Acetylene

10. The freezing point of water is ___________ celcius?

A. 2

B. 1

C. 3

D. 0

11. All the member of alkane series has?

A. All types of bonds

B. At least one triple bond

C. All single bonds

D. At least one double bond

12. Ethane reacts with chlorine in the presence of ?

A. Ether

B. Water

C. Carbon tetra chloride

D. Sunlight

13. Baeyer’s reagent is?

A. Conc. KMnO4

B. Hot KMnO4

C. Acidic KMnO4

D. Alkaline KMnO4

14. The total volume of water present on earth surface is ?

A. 1.33 Million KM3

B. 1.386 Billion KM3

C. 1.3 Trillion KM3

D. 1.7 KM3

15. Which one is the least reactive ?

A. Ethane

B. Ethene

C. Propane

D. Ethyne

16. Baeyer’s test shows the presence of ?

A. Both A and B

B. A triple bond

C. A double bond

D. No bond

17. The quantity of fresh water present on eat is only about ?

A. 0.04%

B. 2.2%

C. 3.6%

D. 2.5%

18. Dehydration of ethyl alcohol with conc. H2SO4 results in the formation of?

A. Methane

B. Acetylene

C. Ethane

D. Ethene

19. Which of the following is inorganic?

A. CH3OH

B. CH4

C. CH3CL

D. NaCN

20. Which of the following statement is not true for alkynes?

A. They do not perform Baeyer’s Test

B. They burn to form CO2

C. They undergo addition reaction

D. They contain a triple bond

Chemistry Online MCQs Test 02 For Preparation

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