Acids, bases and salt Worksheet-6
Multiple Choice Questions:
(A) Metals react with acids forming their respective salts and hydrogen gas
(B) They corrode metal and eat up the metal container
(C) Dilute acids can be stored in metal containers
(D) Both A and B
(E) A, B, C
(A) Ca(OH)2 (B) Mg(OH)2 (C) NaOH (D) Be(OH)3
(A) Red (B) Green (C) orange (D) blue
(A) 1M CH3COOH (B) 1M glucose solution
(C) Both have same Ph (D) None of these
(A) NaCl + H2CO3 (B) Na2CO3 + 2HCl
(C) NaCl + H2O + CO2 (D) NaCl + H2O + CO
(A) blue (B) red (C) purple (D) colourless
(A) dil H2SO4 (B) dil HCl (C) dil HNO3 (D) H2CO3
(A) KCl(aq) + CO2 + H2O(l) (B) KCl(aq) + CO(g) + H2O(l)
(C) KOH(aq) + CO(g) + H2O(l) (D) KCl(aq) + CO2(g)
(A) CuO(s) (B) CuCO3(s) (C) CuSO4 (D) CuCl2
(A) Lime water turns milky due to the formation of calcium carbonate(s)
(B) White ppt of calcium carbonate formed dissolves due to the formation of soluble salt (calcium hydrogen carbonate), solution becomes clear
(C) Carbon di-oxide reacts with calcium hydroxide forming calcium oxide Which makes lime water milky.
(D) None of these
(A) MgO(aq) + H2O(l) (B) Mg(aq)2+ + 2OH(aq)–
(C) MgH2(aq) + O2(g) (D) All (a, b, c)
(A) MgCO3(s) + H2O(l) (B) Mg(CO3)2 + H2O
(C) MgO + H2CO3 (D) MgO + 2H+ + 2O2(g)
(A) FeNO2 (B) Fe(NO3)2 (C) Fe2NO (D) Fe(NO3)2
(A) Acidic (B) Basic (C) Neutral (D) None of these
(A) HCl + H2O + Na+ (B) NaCl
(C) HCl (D) All of these
(A) Acidic (B) Basic (C) Neutral
NaHCO3 + H2SO4 →
(A) Na2SO4 + H2O + CO2 (B) Na2SO4 + H2
(C) Na2S + H2O + CO2 (D) Na2O + H2O + CO2
Answer key:
Is a weak acid, where as glucose is a covalent compound it do not release H+ in solution so glucose solution is neutral.
Metal carbonates react with acids forming their salts, water and carbon di-oxide gas.