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Solved Organic Chemistry Quiz Questions And Answers MCQs

Q.1: The hydrogenation of phenol in the presence of Ni and heat gives--------- ?

1. cyclohexane
2. n – hexane
3. 1 – hexanol
4. cyclohexanol

D

Q.2: One mole of CO2 contains ?

1. 6.022 x 1023 atoms of oxygen
2. 22-gram electrons
3. 6.022 x 1023 atms of carbon
4. both
5. & C.

D

Q.3: An alcohol which can be prepared by fermentation is------- ?

1. CH3OH
2. C3H7OH
3. CH3 – CH2 – OH
4. C6H5OH

C

Q.4: The formula of starch is---------- ?

1. C12H22O11
2. C6H10O5
3. (C6H10O5)n
4. C6H12O6

C

Q.5: Solubility of any salt can be determined from------- ?

1. Ka
2. Kb
3. Kc
4. Ksp

D

Q.6: Which one of the following is a buffer solution ?

1. brine
2. blood
3. glue
4. solution of CuSO4

B

Q.7: Which of the following will have very high rate of reaction ?

1. Double decomposition reaction
2. Neutralization reaction
3. Ionic reactions
4. all of above

D

Q.8: Anything which increases rate of reaction without being involved in the reaction------- ?

1. Promoter
2. Catalyst
3. Inhibitor
4. All of the above

B

Q.9: An enzyme has its specificity due to----------- ?

1. Substrate
2. Structure
3. Temperature
4. Pressure

B

Q.10: At start of reaction the concentration of reactants is--------- ?

1. high
2. low
3. according to Kc
4. constant

A

Q.11: The sequence of zones in the rotary kiln are as-------- ?

1. dry zone burning zone decomposition zone cooling zone
2. cooling zone burning zone decomposition zone dry zone
3. burning zone cooling zone decomposition zone
4. dry zone decomposition zone burning zone cooling zone

D

Q.12: Acid present in acid rain may be---------- ?

1. H2SO4
2. HNO3
3. both A and B
4. none

C

Q.13: Which of the following is the most suitable catalyst for ammonia synthesis ?

1. Pt
2. ZnO + Cr2O3
3. Fe in fused mixture of Al2O3 + SiQ2 + MgO
4. All of the above

C

Q.14: The main product of bacterial action is-------- ?

1. Nox
2. NO2
3. N2O3
4. NO

D

Q.15: Pollutants have adverse effect over-------- ?

1. Biosphere
2. Ecosystem
3. Both a AND b
4. Hydrosphere

B

Q.16: How many zones through which the charge passes in a rotary kiln ?

1. 4
2. 3
3. 2
4. 5

A

Q.17: Major cause of SO2 on global scale is--------- ?

1. volcanoes
2. electric sparks
3. combustion
4. all

A

Q.18: Which of the following factors help to measure quallity of water ?

1. DO
2. BOD
3. COD
4. all of the above

D

Q.19: The main product of bacterial action is------ ?

1. Nox
2. NO2
3. N2O3
4. NO

D

Q.20: Which of the following is used as water disinfectant to avoid the formation of toxic compounds---------- ?

1. Cl2
2. O3
3. ClO2
4. both B AND C

D