Chemistry MCQs | Solved Organic Chemistry Online Test

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Chemistry Exam Questions Answers Objective Type Solutions



Q.1: Which has maximum oxidation number ?

  1. N
  2. Cr
  3. S
  4. Mn

D

Q.2: In electrolytic cell electricity carries------- ?

  1. spontaneous reaction
  2. non-wpontaneous reaction
  3. neutralization
  4. all of above

B

Q.3: Non-stoichiometric compounds of transition elements are called---------- ?

  1. hydrates
  2. hydrides
  3. binary compounds
  4. interstitial compounds

D

Q.4: Geometry of the complex compounds usually depends upon --------- ?

  1. type of ligands
  2. types of hybridization in the elements of ligands
  3. hybridization of central metal
  4. All of above

C

Q.5: Voltaic cell can be recharged by------- ?

  1. by addition of fresh solution
  2. by replacing external circuit with external source of electricity
  3. by removal of solution
  4. by heating it

B

Q.6: Number of moles in 1 kg of solvent is called-------- ?

  1. normality
  2. molarity
  3. molality
  4. mole fraction

C

Q.7: Lead accumulators are--------- ?

  1. secondary cell
  2. primary cell
  3. voltaic cell
  4. both A AND C

D

Q.8: Group VIB of transition elements contains------- ?

  1. Zn Cd Hg
  2. Fe Ru Os
  3. Cr Mo W
  4. Mn Te Re

C

Q.9: Percentage of sulfuric acid in lead accumulator is-------- ?

  1. 40%
  2. 25%
  3. 30%
  4. 50%

C

Q.10: Electrode potential of Zn is--------- ?

  1. oxidation
  2. reduction
  3. oxidation-reduction
  4. depends on the nature of the coupled electrode

D

Q.11: When an active metal like Al comes in contact with less active element like Cu then it produces------ ?

  1. dry cell
  2. galvanic cell
  3. electrolytic cell
  4. A and B

B

Q.12: Compounds attracted by applied strong magnetic field are called------- ?

  1. diamagnetic
  2. paramagnetic
  3. good conductor
  4. ferromagnetic

B

Q.13: The central atom along with ligands is called------- ?

  1. complex ion
  2. coordination sphere
  3. ligand
  4. complex compound

B

Q.14: 1 molar solution of glucose in water contains weight of glucose------- ?

  1. 180g/dm3
  2. 170g/dm3
  3. 190g/dm3
  4. 195g/dm3

A

Q.15: Which of the following gases is the main cause of acid rain ?

  1. CO
  2. NO2
  3. both a AND b
  4. none of the above

B

Q.16: Which one of the following salt does not hydrolyzed------ ?

  1. Na2SO4
  2. AlCl3
  3. CuSO4
  4. NH4Cl

A

Q.17: A single chlorine free radical can destroy how many ozone molecules ?

  1. 10
  2. 100
  3. 10000
  4. 100000

D

Q.18: The component of solution which is in smaller amount is called---------- ?

  1. solvent
  2. solute
  3. phase
  4. ion

B

Q.19: Which of the following solutions of H2SO4 is more concentrated ?

  1. 1 Molar solution
  2. 1 molal solution
  3. 1 normal solution
  4. all have same concentration

A

Q.20: Homogeneous mixture of two or more than two compounds is called-------- ?

  1. solution
  2. compound
  3. radical
  4. ion

A


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