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Class 10 Exam  >  Class 10 Tests  >  Assertion & Reason Test: Metals & Non-metals - 2 - Class 10 MCQ

Assertion & Reason Test: Metals & Non-metals - 2 - Class 10 MCQ


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10 Questions MCQ Test - Assertion & Reason Test: Metals & Non-metals - 2

Assertion & Reason Test: Metals & Non-metals - 2 for Class 10 2024 is part of Class 10 preparation. The Assertion & Reason Test: Metals & Non-metals - 2 questions and answers have been prepared according to the Class 10 exam syllabus.The Assertion & Reason Test: Metals & Non-metals - 2 MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Assertion & Reason Test: Metals & Non-metals - 2 below.
Solutions of Assertion & Reason Test: Metals & Non-metals - 2 questions in English are available as part of our course for Class 10 & Assertion & Reason Test: Metals & Non-metals - 2 solutions in Hindi for Class 10 course. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free. Attempt Assertion & Reason Test: Metals & Non-metals - 2 | 10 questions in 20 minutes | Mock test for Class 10 preparation | Free important questions MCQ to study for Class 10 Exam | Download free PDF with solutions
Assertion & Reason Test: Metals & Non-metals - 2 - Question 1
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Assertion: Metals have the quality of reflecting light from their surface and can be polished.
Reason: Non-metals are not usually lustrous.

Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 1

Metals have the quality of reflecting light from their surface and can be polished e.g., gold, silver, and copper. 
Non-metals are usually not lustrous, except iodine and diamond - the most lustrous of all the substances. 
But the reason is not the correct explanation of assertion.

Assertion & Reason Test: Metals & Non-metals - 2 - Question 2
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Assertion : Usually the sulphide ore is converted to oxide before reduction.

Reason : Reduction of oxides occurs easier.

Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 2
Both assertion (A) and reason (R) are true explanations of assertion (A). Usually the sulphide ore is converted to oxide before reduction as oxides are easier to reduce.
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Assertion & Reason Test: Metals & Non-metals - 2 - Question 3
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Assertion : Iron pyrite is not useful in the extraction of Fe.

Reason : SO2 polluting gas is produced during extraction.

Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 3
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A). Pyrite is composed of iron and sulphur. The sulphur content during extraction may contaminate the metal and reduce the strength.
Assertion & Reason Test: Metals & Non-metals - 2 - Question 4
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Assertion : Zinc carbonate is heated strongly in the presence of air to form zinc oxide and carbon dioxide.

Reason : Calcination is the process in which a carbonate ore is heated strongly in the absence of air to convert into metal oxide.
Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 4
Assertion (A) is false but reason (R) is true.
Assertion & Reason Test: Metals & Non-metals - 2 - Question 5
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Assertion : In the metallurgy of Al, purified Al2O3 is mixed with Na3AlF6 or CaF2.

Reason : It lowers the melting point of the mixture and brings conductivity.
Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 5
Both assertion (A) and reason (R) are true and reason explanation of assertion (A). In the metallurgy of aluminium, purified Al2O3 is mixed with Na3AlF3 or CaF2 which lowers the melting point of the mix and brings conductivity.
Assertion & Reason Test: Metals & Non-metals - 2 - Question 6
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Assertion : Gold is isolated from other impurities by the Arndt forrest cyanide process.

Reason : The cyanide which is used here dissolve all possible impurities.
Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 6
Assertion (A) is true but reason (R) is false. The cyanide dissolves gold by forming a complex.
Assertion & Reason Test: Metals & Non-metals - 2 - Question 7
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Assertion : Magnesium chloride is an ionic compound.

Reason : Metals and non-metals react by mutual transfer of electrons.
Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 7
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Assertion & Reason Test: Metals & Non-metals - 2 - Question 8
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Assertion : Zinc can easily displace Copper on reacting with a solution of copper sulphate.

Reason : Copper is more reactive metal as compared to Zinc.
Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 8
Assertion (A) is true but reason (R) is false.
Assertion & Reason Test: Metals & Non-metals - 2 - Question 9
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Assertion : Zinc oxide amphoteric in nature.

Reason : Zinc oxide reacts with both acids and bases.
Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 9
Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Assertion & Reason Test: Metals & Non-metals - 2 - Question 10
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Assertion : Bronze is an alloy of lead and tin.
Reason : Alloys are a heterogeneous mixture of metals with other metals and non-metals.
Detailed Solution for Assertion & Reason Test: Metals & Non-metals - 2 - Question 10

Correct answer is C. Both Assertion and Reason are false.
An alloy is a homogeneous mixture containing two or more metals in it. Bronze is an alloy made by mixing copper (Cu) and tin (Sn).

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