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Subject :Chemistry    Class : Class 6

In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : Materials can be sorted on the basis of solubility in water.
Reason : Lemon juice is soluble in water.

A If both assertion and reason are true and reason is the correct explanation of assertion.
B If both assertion and reason are true but reason is not the correct explanation of assertion.
C If assertion is true but reason is false.
D If assertion is false but reason is true.


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Subject :Chemistry    Class : Class 6

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Subject :Chemistry    Class : Class 8

Assertion : Bakelite is used for making electric switches and plugs.
Reason : It is a thermosetting polymer and an insulator.
In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

A If both assertion and reason are true and reason is the correct explanation of assertion.
B If both assertion and reason are true but reason is not the correct explanation of assertion.
C If assertion is true but reason is false.
D If both assertion and reason are false.


it is a thermoplastic polymer

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Subject :Chemistry    Class : Class 6

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Subject :Chemistry    Class : Class 10

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Subject :Chemistry    Class : Class 9

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Subject :Chemistry    Class : Class 8

Ans 1:

Class : Class 8
option B

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Subject :Chemistry    Class : Class 8

Assertion : Synthetic fibres are stronger than natural fibres.
Reason : Synthetic fibres are not obtained from plants and animals.
In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

A If both assertion and reason are true and reason is the correct explanation of assertion.
B If both assertion and reason are true but reason is not the correct explanation of assertion.
C If assertion is true but reason is false.
D If both assertion and reason are false.


synthetic fibres are obtained from plant and animals

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Subject :Chemistry    Class : Class 8

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Subject :Chemistry    Class : Class 8

Ans 1:

Class : Class 8
its lightning strike

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