Chemistry MCQs Online Quiz Test 1

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Chemistry MCQs For PMS Exams Tests Preparation Online

Q.1: The rate of E1 reaction depends upon—–?

  1. the concentration of substrate
  2. the concentration of nucleophile
  3. the concentration of substrate as well as nucleophile
  4. base the concentration of substrate as well as nucleophile

A

Q.2: Elimination bimolecular reactions involve————–?

  1. first order kinetics
  2. second order kinetics
  3. third order kinetics
  4. zero order kinetics

B

Q.3: Grignard reagent is reactive due to———-?

  1. the presence of halogen atom
  2. the presence of magnesium atom
  3. the polarity of C-Mg bond
  4. All

C

Q.4: The ether used in Wurtz synthesis is———?

  1. acidic
  2. basic
  3. aqueous
  4. dry

D

Q.5: Which one of the following species is not an electrophile ?

  1. NH3
  2. Br+
  3. H+
  4. BF3

A

Q.6: Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ?

  1. primary alcohol
  2. secondary alcohol
  3. tertiary alcohol
  4. dihydric alcohol

C

Q.7: 1 mole of electron has mass in microgram———?

  1. 1.008 x 10-3
  2. 5.5 x 10-4
  3. 1.84 x 10-4
  4. 1.673 x 10-3

B

Q.8: The use of antifreeze in the automobile radiator is an important application of———?

  1. constitutive property
  2. additive property
  3. colligative property
  4. intrinsic property

C

Q.9: At which electrode the reduction of the solution is occurring in Al-Ag cell——-?

  1. A
  2. Ag
  3. Both
  4. Neither

B

Q.10: In which of the following type of reactions energy of reactant is greater than energy of product——–?

  1. endothermic
  2. exothermic
  3. unpredictable
  4. same

B