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


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


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

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


Q.4: All the enthalpy changes are——–?

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


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

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


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


Q.7: Which one is false for evaporation ?

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


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

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


Q.9: Tincal is a mineral of———-?

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


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

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