116) Mixing acid to water is

A) exothermic reaction
B) endothermic reaction
C) neutralization
D) none of the above

117) Bleaching powder is formed from

A) Slaked lime + HCl
B) Slaked lime + Cl₂
C) Quick lime + HCl
D) Quick lime + CO₂

118) Maximum number of electrons present in an orbital of atom is

A) 8
B) 6
C) 10
D) 2

119) Bases can give _____ ions in water

A) H⁺
B) OH^–
C) H₃O⁺
D) OH⁺

120) Colour of anhydrous CuSO₄ is

A) White
B) Blue
C) Green
D) Yellow