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Science Assertion (A) & Reason (B) MCQ

CHEMISTRY CH11 Atomic Structure · Tamil Nadu Board STD 9 (Tamil - English Medium). 3 questions.

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Assertion (A) & Reason (B) MCQ

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3 questions · timed · auto-graded

MCQ 11 Mark
Assertion (A): Non-metals are electronegative. Reason (R) : Non-metal losë electrons to form cation.
  • A
    Both A & R are right
  • B
    Both A & R are wrong
  • ✓
    A is right R is wrong
  • D
    A is the wrong R is right
Answer
Correct option: C.
A is right R is wrong
A is right R is wrong
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MCQ 21 Mark
(A) : Noble gases are chemically inert in nature. Reason (R) : Noble gases have stable electronic structures.
  • A
    Both A & R are right
  • B
    Both A & R are wrong
  • C
    A is right R is wrong
  • D
    A is wrong R is right
Answer
Both A & R are right]
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MCQ 31 Mark
Assertion (A): Group 2 elements in the modem periodic table are called alkaline earth metals. Reason (R): The oxides of group 2 elements produce alkaline solutions when they are dissolved in water.
  • A
    A is right R is wrong
  • ✓
    R explains A
  • C
    R does not explain A
  • D
    R is right A is wrong
Answer
Correct option: B.
R explains A
R explains A
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Assertion (A) & Reason (B) MCQ - Science STD 9 Questions - Vidyadip