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ICSE Guess > ICSE Papers > Question Bank > Class X > 2008 >Chemistry

(v) The gas law which relates the volume of a gas to the number of molecules of the gas is:

A Avogadro's Law
B Gay-Lussac'sLaw
C Boyle'sLaw
D Charles'Law

(vi) During the electrolysis of molten lead bromide. which of the following takes place?

A Bromine is released the at cathode
B Lead is deposited at the anode
C Bromine ions gain electrons
D Lead is deposited at the cathode

(vii) Brass is an alloy of:

A Copper and tin
B Copper and zinc
C Zinc and lead
D Lead and tin

(viii) Ammonia can be obtained by adding water to:

A Ammonium chloride
B Ammonium nitrite
C Magnesium nitride
D Magnesium nitrate

(ix) Which of the following reactions is used to prepare sulphuryl
chloride?

A Adding concentrated sulphuric acid to a chloride.
B Passing sulphur dioxide through a solution of chlorine.
C Reacting dry sulphur dioxide and dry chlorine
D Reacting dilute sulphuric acid with a solution of chlorine.

(x) The formation of 1, 2-dibromoethane from ethene and bromine is
an example of :

A Substitution
B Dehydration
C Dehydrohalogenation
D Addition