Q:

In the reaction H2O2 + Cl2 -----> 2HCl + O2, H2O2 acts as

A) an acid	B) an oxidising agent
C) a reducing agent	D) a base

Answer & Explanation Answer: C) a reducing agent

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Q:

What is formed when Carbon Dioxide is passed through Lime Water?

A) Copper Sulphate	B) Calcium Carbonate
C) Magnesium Oxide	D) Baking Soda

Answer & Explanation Answer: B) Calcium Carbonate

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Q:

Which of the following elements has the lowest melting point?

A) Bromine	B) Zinc
C) Lead	D) Calcium

Answer & Explanation Answer: A) Bromine

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Q:

What is dehydration?

A) Removal of acid from a molecule	B) Removal of base from a molecule
C) Removal of water from a molecule	D) Removal of alkali from a molecule

Answer & Explanation Answer: C) Removal of water from a molecule

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Q:

Which electron dot formula represents a polar molecule?

A) A	B) B
C) C	D) D

Answer & Explanation Answer: B) B

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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.

Good role models in classrooms and in communities are the most important (1)/ part of getting educate as the actions and decisions (2)/ of role models impact the behaviour of others. (3)/ No error (4)

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

Answer & Explanation Answer: B) 2

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Q:

Name the source from which Aspirin is produced?

A) Willow bark	B) Oak Tree
C) Acacia	D) Eucalyptus

Answer & Explanation Answer: A) Willow bark

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Filed Under: Biology
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Q:

Convex and concave mirrors are examples of?

A) Plane mirrors	B) Spherical mirrors
C) Inverted mirror	D) Erect mirror

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