Chemistry MCQs Online Quiz Test 28

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Chemistry Online MCQs Quiz Test In English

Q.1: Bucky balls is an allotropic from of———?

  1. Carbon
  2. Sulphur
  3. Silica
  4. Tin

A

Q.2: Isomorphic substances have ——–?

  1. Same physical and chemical properties
  2. Same physical and different chemical properties
  3. Different physical and same chemical properties
  4. Different physical and chemical properties

D

Q.3: The pressure during the molar heat of fusion is kept——–?

  1. 0 atmosphere
  2. one atmosphere
  3. 2 atmosphere
  4. 10 atmosphere

B

Q.4: All the enthalpy changes are——–?

  1. Negative
  2. Positive
  3. May or may not be A or B
  4. none

C

Q.5: Which has strongest bonding in the solid state ?

  1. Hydrogen Chloride (HCI)
  2. Chlorine (Cl2)
  3. Xenon(Xe)
  4. Sodium Chloride (NaCI)

D

Q.6: When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called———?

  1. ABAB (hexagonal)
  2. ABCABC (Cubic)
  3. Orthor hombic
  4. Rhombohedral

A

Q.7: Which one is false for evaporation ?

  1. Surface phenomenon
  2. Continuous
  3. Exothermic
  4. Cause cooling

C

Q.8: Which of the following shows inert pair effect ?

  1. boron
  2. carbon
  3. silicon
  4. tin

D

Q.9: Tincal is a mineral of———-?

  1. A1
  2. Si
  3. B
  4. C

C

Q.10: Which one of the following is not a semiconductor ?

  1. Si
  2. Ge
  3. Se
  4. Sn

D