Chemistry MCQs Online Quiz Test 16

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Structure Of Atom Chemistry MCQs With Answers

Q.1: Unit of rate of reaction is———?

  1. Moles dm-3 sec-1
  2. Moles dm-3
  3. Moles sec-1
  4. Mol-1 dm3 sec-1

A

Q.2: Rate of disappearance of reactant is equal to———?

  1. Rate of reaction
  2. Rate of formation of product
  3. Energy released during reaction
  4. A and B

A

Q.3: For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants———?

  1. Single
  2. Square
  3. Cube
  4. Raise to power four

B

Q.4: Which of the following is a macro nutrient ?

  1. boron
  2. iron
  3. copper
  4. carbon

D

Q.5: Three elements needed for the healthy growth of plants are———?

  1. N P K
  2. N K C
  3. N S P
  4. N Ca P

A

Q.6: Residence time of methane in the atmosphere is———-?

  1. 3 – 7 days
  2. 2 -3 days
  3. 3 – 7 years
  4. 2 – 3 years

C

Q.7: Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing———-?

  1. NH2Cl
  2. NHCI2
  3. NCI2
  4. all of the above

D

Q.8: Acid present in acid rain may be———?

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

C

Q.9: Which of the following is not a condition for the formation of smog ?

  1. sufficient NO
  2. sunlight
  3. less movement of air
  4. winds

D

Q.10: In which of the following layer of atmosphere there is more thickness of ozone layer ?

  1. troposphere
  2. stratosphere
  3. mesosphere
  4. photosphere

B