Chemistry MCQs Online Quiz Test 50

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Chemistry Everyday Life MCQs Online Quiz Test

Q.1: Capacity of one lead accumulator cell is———-?

  1. 1.5 volts
  2. 2 volts
  3. 3 volts
  4. 1 volts

B

Q.2: Density of H2SO4 in lead accumulator is———?

  1. 1.25g/cm3
  2. 1.3g/cm3
  3. 1.20g/cm3
  4. 1.15g/cm3

A

Q.3: In alkaline battery the anode is made up of———–?

  1. MnO2
  2. Zn
  3. AgO2
  4. cadmium

B

Q.4: Apparent charge on atom in molecule is———-?

  1. valency
  2. coordination number
  3. oxidation number
  4. charge number

C

Q.5: In K2Cr2O7 the oxidation number of chromium is———-?

  1. 7
  2. 6
  3. -7
  4. -6

B

Q.6: The reduction potential Zn is———?

  1. 0.76
  2. -0.76
  3. -0.55
  4. 0.55

B

Q.7: Coordination number of the transition element in [Pt Cl NO2 (NH3)4]2- is———-?

  1. 2
  2. 6
  3. 4
  4. 8

B

Q.8: The oxidation number of central metal atom in [Ni(CO)4] is———?

  1. 0
  2. 2
  3. 4
  4. 6

C

Q.9: Group VIB of transition elements contains———-?

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

C

Q.10: The leements in which d or f orbitals are in the process of completion are———?

  1. outer transition elements
  2. inner transition elements
  3. typical transition elements
  4. transition elements

D