Organic Chemistry Multiple Choice Questions and Answers – Acids and Bases

Questions
1 Which one is correctly matched?
A Acids – pH range above7
B Acids – pH range below 7
C Acids – pH range 7(neutral)
D Acids – pH range 8-9

Answer: Acids – pH range below 7
2 A Strong acid is same as concentrated acid.
A False
B True

Answer: False
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3 When an acid reacts with a metal, which one of the following gas is usually liberated?
A ammonia gas
B chlorine
C oxygen
D Hydrogen gas

Answer: Hydrogen gas
4 Which of the following is wrongly mapped?
A Sodium carbonate – Washing soda
B Sodium chloride – common salt
C Calcium carbonate – slaked lime
D Sodium hydroxide – caustic soda

Answer: Calcium carbonate – slaked lime
5 What will be the X in the following equation?

MgO + 2HCl —-> X + H2O

A Mg2Cl
B 2MgCl
C MgCl
D MgCl2

Answer: MgCl2
6 Which of the following is neither an acid nor base?
A CH3COOH
B HCl
C KCl
D CH3OH

Answer: KCl
7 Which one will change from red litmus to blue?
A NaCl
B HCl
C KOH
D LiOH

Answer: HCl
8 What is the pH of 0.0001 molar HCl solution?
A 1
B 2
C 3
D 4

Answer: 4
9 What will be the product when HNO3 reacts with NH4OH?
A NH4 NO3
B 2NH4 NO3
C NH4 (NO3)2
D NH2NO3

Answer: NH4 NO3
10 Find the odd one out.
A Neutral salt : NaCl
B Acid salt : CuSO4.5H2O
C Basic salt: CuCO3.Cu(OH)2
D Nonhydrated salt: KNO3

Answer: Acid salt : CuSO4.5H2O

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