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Tuesday, 1 November 2016

ICSE CHEMISTRY - PRACTICE PAPER 2

ICSE CHEMISTRY - PRACTICE PAPER 2

A) Correct the following statements and rewrite.                                                                      5M
i) Physical and chemical properties of the elements are the periodic functions of their atomic weights.
ii) Metallic nature of the elements increases from left to right across a period.
iii) Hydrochloric acid is a weak acid.
iv) Hydrogen ions are responsible for the acidic nature of an acid.
v) Bases turn blue litmus to red.
B) Name the following.                                                                                                             5M
i) The first element of the Periodic Table.
ii) The horizontal rows in the Periodic table are given this term.
iii) The distance between the centre of the nucleus of atom and its valence shell.
iv)A non volatile acid.
v) The metal which golden yellow flame in flame test.
C) Study the given table and answer the questions given below.                                             5M
Atomic No.
3
4
5
6
7
8
9
10
11
12
Element
A
B
C
D
F
G
H
I
J
K
i)        The element which contains 3 valence electrons.
ii)      The element electronic configuration 2,6.
iii)    The element which belongs to Halogen group.
iv)    An alkali metal.
      V) A noble gas

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