Assertion - Reasoning (1 Marks) - Science STD 10 Questions

Question 11 Mark

Assertion (A): Stannous chloride is a powerful oxidising agent which oxidises mercuric chloride to mercury.
Reason (R): Stannous chloride gives a grey precipitate with mercuric chloride, but stannic chloride does not do so

Answer

A is false but R is true.
Explanation: A is false but R is true.

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Question 21 Mark

Assertion (A): Vaginal pills contain spermicides.
Reason (R): Spermicides kill the sperms.

Answer

Both A and R are true but R is not the correct explanation of A.
Explanation: Vaginal pills are the chemical methods of birth control. The vaginal pills contain the chemicals called spermicides which kill the sperms.

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Question 31 Mark

Assertion (A): The magnetic field intensity at the centre of a circular coil carrying current changes, if the current through the coil is doubled.
Reason (R): The magnetic field intensity is dependent on current in conductor.

Answer

Both A and R are true and R is the correct explanation of A.
Explanation: The magnetic field at the centre of circular coil is directly proportional to the current flowing through it. So if current through coil is doubled then magnetic field becomes double.

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Question 41 Mark

Assertion (A): In an ecosystem, the function of producers is to convert organic compounds into inorganic
compounds.
Reason (R): Green plants, the producers, transduce solar energy.

Answer

Both A and R are true and R is the correct explanation of A.
Explanation: Both A and R are true and R is the correct explanation of A.

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Science Assertion - Reasoning (1 Marks)

Assertion - Reasoning (1 Marks)

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