CTET Paper II (Upper Primary: Class 6-8)

Materials - Fibres Plastics Metals Non-Metals Acids Bases Salts question bank (Mathematics & Science)

Practice 121 free CTET Paper II (Upper Primary: Class 6-8) Mathematics & Science - Materials - Fibres Plastics Metals Non-Metals Acids Bases Salts questions with answers and step-by-step solutions.

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Q1.

The atomic number of A is 13 and the atomic number of B is 17. The chemical formula of the compound formed from A and B could be :

CTET Paper II - Jul 2024, Q85 (Official PYQ)

(A)
A3B
(B)
AB3
(C)
AB2
(D)
AB
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Q2.

An oxide of a substance X reacts with water to produce another substance Y. Y reacts with oxygen to form Z. It is observed that Y turns blue litmus red. Which of the following can be concluded about X, Y and Z?

CTET Paper II - Dec 2024 (15 Dec), Q63 (Official PYQ)

(A)
X is a metal, Y is acidic and Z is basic in nature.
(B)
X is a metal, Y is basic and Z is acidic in nature.
(C)
X is a non-metal, Y is acidic and Z is basic in nature.
(D)
X is a non-metal, Y is acidic and Z is acidic in nature.
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