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Saturday, 17 September 2022

ICSE CHEMISTRY CLASS 10 Multiple Choice questions

ICSE CHEMISTRY - MCQs from The Periodic Table Chemical Bonding and gases

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a) Choose the correct answer from A, B, C and D for each of the following statements.  

 

i) The number of valence electrons present in Sodium atom:

A) 1                             B) 2                             C) 3                                         D) 4

 

ii) Which of the following periodic property decreases across a period in the periodic table?

A) Electron affinity                B) Electronegativity                           

C) Metallic character               D) Ionization Potential

 

iii) The statement which is not true about Electrovalent Bond?

A) Ions are formed                             B) Molecules are formed                               

C) Electron transfer takes place          D) It is formed between a metal and a non-metal

 

iv) The electronic configuration of Oxide ion is:

A) 2,6                          B) 2,8                          C) 2,8,6                       D) 2

 

v) In the formation of Sodium chloride:

A) Sodium loses 1 electron and oxidized                   B) Sodium loses 1 electron and reduced

C) Sodium gains 1 electron and reduced                    D) Sodium gains 1 electron and oxidized

 

vi) Magnesium atom loses _____ electrons and attains the electronic configuration of _______.

A) 2, Argon                 B) 1, Neon                  C) 2, Neon                  D) 1, Argon

 

vii) The Noble gas which does not possess Octet Configuration:

A) Neon                      B) Helium                   C) Argon                     D) Krypton

 

viii) A gas turns lime water milky but has no effect on acidified KMnO4 solution:

A) Oxygen gas            B) Hydrogen gas         C) Carbon dioxide      D) Sulphur dioxide

 

ix) An acidic gas with reddish brown colour:

A) Nitrogen dioxide               B) Hydrogen sulphide                       

C) Hydrogen chloride             D) All of the above

 

x) A compound which contains molecules in it?

A) Sodium chloride                B) Methane

C) Calcium oxide                    D) Magnesium chloride

1 comment:

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