chemical equations

mcqspedia.com has 5 Question/Answers about Topic chemical equations

Consider Calcium Carbonate (CaCO3) and Hydrochloric Acid (HCl) as reactants, molecules of Hydrochloric Acid (HCl) required to balance equation will be

Consider Calcium Carbonate (CaCO3) and Hydrochloric Acid (HCl) as reactants, molecules of Hydrochloric Acid (HCl) required to balance equation will be
  • A. 1
  • B. 2
  • C. 3
  • D. 4
  • Correct Answer: Option B

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

In writing chemical equations, inclusion of state symbols shall be done while
  • A. correct chemical formulae of reactants and products are written
  • B. equation is being balanced to fulfill law of conservation of mass
  • C. equation has been balanced
  • D. chemical formulae of products and reactants have been changed to bring about quick balancing
  • Correct Answer: Option C

Consider equation: Pb+2 (aq) + 2OH- (aq) → Pb(OH)2 (s). precipitate of lead (II) hydroxide will be of

Consider equation: Pb+2 (aq) + 2OH- (aq) → Pb(OH)2 (s). precipitate of lead (II) hydroxide will be of
  • A. green color
  • B. blue color
  • C. brown color
  • D. white color
  • Correct Answer: Option D

Consider equation: Cu+2(aq) + 2OH-(aq) → Cu(OH)2(s). precipitate of Copper Hydroxide (Cu(OH)2) will be of

Consider equation: Cu+2(aq) + 2OH-(aq) → Cu(OH)2(s). precipitate of Copper Hydroxide (Cu(OH)2) will be of
  • A. green color
  • B. blue color
  • C. brown color
  • D. white color
  • Correct Answer: Option B

Consider equation: Ca+2 (aq) + 2OH- (aq) → Ca(OH)2 (s). precipitate of calcium hydroxide will be of

Consider equation: 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
  • Correct Answer: Option D