ICSE Board Class IX Chemistry Sample Paper - 5 Time: 2 hrs Total Marks: 80 General Instructions: 1. Answers to this paper must be written on the paper provided separately. 2. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. 3. The time given at the head of the paper is the time allotted for writing the answers. 4. Attempt all questions from Section I and any four questions from Section II. 5. The intended marks of questions or parts of questions are given in brackets [ ]. SECTION I (40 Marks) Attempt all questions from this section. Question 1 (a) Fill in the blanks: i. Dalton used symbol _____ for oxygen and symbol _____ for hydrogen. ii. Symbol represents _____ atom(s) of an element. iii. Symbolic expression for a molecule is called _____. iv. Sodium chloride has two radicals. Sodium is a _____ radical, while chloride is _____ radical. v. Valency of carbon in CH4 is _____ , in C2H6 is _____, in C2H4 is ___ and in C2H2 is ____. (b) State the type of reaction. i. NaOH + HCl → NaCl + H2O ii. BaCl2 + H2SO4 → BaSO4 + 2HCl iii. 2Fe + 3Cl2 → 2FeCl3 iv. 2PbO2 2PbO + O2 v. PbCl5 heat then cool PCl3 + Cl2 [5] 1
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ICSE Board
Class IX Chemistry
Sample Paper - 5 Time: 2 hrs Total Marks: 80
General Instructions:
1. Answers to this paper must be written on the paper provided separately.
2. You will not be allowed to write during the first 15 minutes.
This time is to be spent in reading the question paper.
3. The time given at the head of the paper is the time allotted for writing the answers.
4. Attempt all questions from Section I and any four questions from Section II.
5. The intended marks of questions or parts of questions are given in brackets [ ].
SECTION I (40 Marks)
Attempt all questions from this section.
Question 1
(a) Fill in the blanks:
i. Dalton used symbol _____ for oxygen and symbol _____ for hydrogen.
ii. Symbol represents _____ atom(s) of an element.
iii. Symbolic expression for a molecule is called _____.
iv. Sodium chloride has two radicals. Sodium is a _____ radical, while chloride is _____
radical.
v. Valency of carbon in CH4 is _____ , in C2H6 is _____, in C2H4 is ___ and in C2H2 is ____.
(b) State the type of reaction.
i. NaOH + HCl → NaCl + H2O
ii. BaCl2 + H2SO4 → BaSO4 + 2HCl
iii. 2Fe + 3Cl2 → 2FeCl3
iv. 2PbO2 2PbO + O2
v. PbCl5 heat thencool PCl3 + Cl2 [5]
1
(c) Write the formula and balance the following chemical equations:
i. Manganese (IV) oxide + Concentrated hydrochloric acid → Manganese (II) chloride +