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What happens when calcium is treated with water ?
(i) It does not react with water.
(ii) It reacts violently with water.
(iii) It reacts less violently with water.
(iv) Bubbles of hydrogen gas formed stick to the surface of calcium.
  • a)
    (i) and (iv)
  • b)
    (ii) and (iii)
  • c)
    (i) and (ii)
  • d)
    (iii) and (iv)
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
What happens when calcium is treated with water ?(i) It does not react...
Calcium reacts comparatively less violently with water and floats on the surface due to hydrogen gas sticking to the surface of the metal.
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Community Answer
What happens when calcium is treated with water ?(i) It does not react...
Among alkaline earth metals only beryllium and magnesium react vigorously with water. Calcium react moderately with cold water. On reacting with water it forms calcium hydroxide and hydrogen gas, which sticks to the surface of water.
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What happens when calcium is treated with water ?(i) It does not react with water.(ii) It reacts violently with water.(iii) It reacts less violently with water.(iv) Bubbles of hydrogen gas formed stick to the surface of calcium.a)(i) and (iv)b)(ii) and (iii)c)(i) and (ii)d)(iii) and (iv)Correct answer is option 'D'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What happens when calcium is treated with water ?(i) It does not react with water.(ii) It reacts violently with water.(iii) It reacts less violently with water.(iv) Bubbles of hydrogen gas formed stick to the surface of calcium.a)(i) and (iv)b)(ii) and (iii)c)(i) and (ii)d)(iii) and (iv)Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What happens when calcium is treated with water ?(i) It does not react with water.(ii) It reacts violently with water.(iii) It reacts less violently with water.(iv) Bubbles of hydrogen gas formed stick to the surface of calcium.a)(i) and (iv)b)(ii) and (iii)c)(i) and (ii)d)(iii) and (iv)Correct answer is option 'D'. Can you explain this answer?.
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