Question

Q9- Consider equations: Ca⁺²(aq) + 2OH‾(aq)→Ca(OH)₂ (s). Precipitate of calcium hydroxide will be of

A) Green color

B) Blue color

C) Brown color

D) White color


Q10- In writing chemical equations, inclusion of state symbols shall be done while

A) Correct chemical formulae of reactants and products are written

B) The equation is being balanced to fulfill the law of conservation of mass

C) The equation has been balanced

D) The chemical formulae of products and reactants have been changed to bring about quick balancing

Answer 1

Answer:

9.) D

10) A

Explanation:

9) ca(oh)2 is lime water whose colour is milky white .

10) A, because for correct the formula of reaction

Answer 2

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