Daily Updated MCQS

Q:By the addition of base in waterpH will be

  • (A)more than 7
  • (B)less than 7
  • (C)equal to 7
  • (D)no effect
  • The Correct Answer is more than 7

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Q:Which statement is wrong ?

  • (A)the amount of ozone layer is greater in the region close to the equator
  • (B)ozone acts as filter for UV radiations
  • (C)in the equatorial region it acts as pollutant
  • (D)CFCs play effective role in removing O3 in the stratosphere
  • The Correct Answer is the amount of ozone layer is greater in the region close to the equator

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Q:When enthalpy of reactants is higher than product then reaction will be

  • (A)endothermic
  • (B)spontaneous
  • (C)non-spontaneous
  • (D)exothermic
  • The Correct Answer is exothermic

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Q:Which one of the following is not a periodic property ?

  • (A)Melting point of elements
  • (B)Boiling point of elements
  • (C)Ionization energy of elements
  • (D)Coordination number of ions
  • The Correct Answer is Coordination number of ions

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Q:Water has maximum density at

  • (A)0°C 4°C
  • (B)100°C
  • (C)2°C
  • (D)4°C
  • The Correct Answer is 4°C

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Q:Which of the solid does not contain covalent bond

  • (A)Copper
  • (B)Ice
  • (C)Diamond
  • (D)Graphite
  • The Correct Answer is Copper

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Q:Newspaper can be recycled again and again how many times ?

  • (A)2
  • (B)3
  • (C)4
  • (D)5
  • The Correct Answer is 5

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Q:Quantum number which tells the energy of electron is

  • (A)n
  • (B)1
  • (C)m
  • (D)s
  • The Correct Answer is n

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Q:Elements having high I.P values are

  • (A)Metals
  • (B)Non metals
  • (C)Liquids
  • (D)Solids
  • The Correct Answer is Non metals

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Q:In unsaturated hydrocarbons electrons favour

  • (A)less reactivity
  • (B)addition reactions
  • (C)substitution reactions
  • (D)None of these
  • The Correct Answer is addition reactions

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Q:Which one of following amino acid is neither acidic nor a basic in nature ?

  • (A)Lysine
  • (B)Histidine
  • (C)Proline
  • (D)Glutamic acid
  • The Correct Answer is Proline

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Q:The relationship between energy of a photon of light and its frequency is given by

  • (A)de-Broglie duel nature of matter
  • (B)Bohrs model
  • (C)Plancks Quantum theory
  • (D)Rutherfords atomic model
  • The Correct Answer is Plancks Quantum theory

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Q:Elements with similar chemical properties appear in the

  • (A)Same family
  • (B)Same period
  • (C)p block elements
  • (D)Right upper corner
  • The Correct Answer is Same family

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Q:The percentage of nitrogen in urea is

  • (A)36%
  • (B)46%
  • (C)56%
  • (D)66%
  • The Correct Answer is 46%

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