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Science Assertion (A) & Reason (B) MCQ

Separation of Substances · MP Board (MPBSE) STD 6 (Madhya Pradesh - English Medium). 7 questions.

Questions

Assertion (A) & Reason (B) MCQ

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7 questions · timed · auto-graded

MCQ 11 Mark
Assertion – for separation of heavier and lighter components of a mixture by wind or by blowing air.
Reason – The process which is used to separate rain from stalks are known as winnowing.
  • A
    Assertion and reason both are correct statement and reason is correct explanation for assertion.
  • B
    Assertion and reason both are correct statement and reason is not correct explanation for assertion.
  • ✓
    Assertion is correct statement but reason is wrong statement. 
  • D
    Assertion is wrong statement but reason is correct statement.
Answer
Correct option: C.
Assertion is correct statement but reason is wrong statement. 
Assertion is correct statement but reason is wrong statement.
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MCQ 21 Mark
Assertion – when the heavier component in a mix settles after water is added to it the process is called sedimentation. Reason – when the water along with the dust is removed the process called decantation.
  • A
    Assertion and reason both are correct statement and reason is correct explanation for assertion.
  • ✓
    Assertion and reason both are correct statement and reason is not correct explanation for assertion.
  • C
    Assertion is correct statement but reason is wrong statement.
  • D
    Assertion is wrong statement but reason is correct statement.
Answer
Correct option: B.
Assertion and reason both are correct statement and reason is not correct explanation for assertion.
 Assertion and reason both are correct statement and reason is not correct explanation for assertion.
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MCQ 31 Mark
Assertion – evaporation can be used to separate a solid dissolved in a liquid. Reason- Evaporation is the process in which liquid gets converted into it’s vapour.
  • ✓
    Assertion and reason both are correct statement and reason is correct explanation for assertion.
  • B
    Assertion and reason both are correct statement and reason is not correct explanation for assertion.
  • C
    Assertion is correct statement but reason is wrong statement.
  • D
    Assertion is wrong statement but reason is correct statement.
Answer
Correct option: A.
Assertion and reason both are correct statement and reason is correct explanation for assertion.
Assertion and reason both are correct statement and reason is correct explanation for assertion.
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MCQ 41 Mark
Assertion- Separation of stones from rice is one of the separation method. Reason – The above separation method is handpicking method of separation.
  • ✓
    Assertion and reason both are correct statement and reason is correct explanation for assertion.
  • B
    Assertion and reason both are correct statement and reason is not correct explanation for assertion.
  • C
    Assertion is correct statement but reason is wrong statement.
  • D
    Assertion is wrong statement but reason is correct statement.
Answer
Correct option: A.
Assertion and reason both are correct statement and reason is correct explanation for assertion.
Assertion and reason both are correct statement and reason is correct explanation for assertion.
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MCQ 51 Mark
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion and the other labelled as "Reason $R$ ". You are to examine these two statements carefully and decide if he Assertion $A$ and Reason $R$ are individually true and if so, whether the reason is a correct explanation if the assertion. Select one of the current options, and given below in each questions.
Assertion A: The process of settling of heavier insoluble particles from a suspension of a substance in water known as decantation.
Reason R: This process along with sedimentation is used to get clear water from muddy water.
  • A
    Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
  • B
    Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
  • ✓
    $A$ is true but $R$ is false
  • D
    $A$ is false but $R$ is true
Answer
Correct option: C.
$A$ is true but $R$ is false

Assertion$-A$ is incorrect. The process is called sedimentation.
Reason$-R$ is correct.

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MCQ 61 Mark
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion and the other labelled as "Reason $R$ ". You are to examine these two statements carefully and decide if he Assertion $A$ and Reason $R$ are individually true and if so, whether the reason is a correct explanation if the assertion. Select one of the current options, and given below in each questions.
Assertion A: The process of conversion of liquid water to its vapours by heating the liquids called evaporation.
Reason R: The process of conversion of water vapours to liquid by cooling the vapours is called condensation.
  • A
    Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
  • ✓
    Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
  • C
    $A$ is true but $R$ is false
  • D
    $A$ is false but $R$ is true
Answer
Correct option: B.
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
 
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MCQ 71 Mark
Direction: The questions in this segment consists of two statements, one labelled as "Assertion $A$" and the other labelled as "Reason $R$". You are to examine these two statements carefully and decide if the Assertion $A$ and Reason $R$ are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below.
Assertion A: At construction sites the pebbles and such other impurities are removed from sand by the process of sieving.
Reason R: In the process of sieving we make use of the difference in size of particles to separate them.
  • ✓
    Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
  • B
    Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
  • C
    $A$ is true but $R$ is false
  • D
    $A$ is false but $R$ is true
Answer
Correct option: A.
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
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