Anil Ahlawat Solutions for Chapter: Acids, Bases and Salts, Exercise 2: EXERCISES

Author:Anil Ahlawat

Anil Ahlawat Science Solutions for Exercise - Anil Ahlawat Solutions for Chapter: Acids, Bases and Salts, Exercise 2: EXERCISES

Attempt the free practice questions on Chapter 2: Acids, Bases and Salts, Exercise 2: EXERCISES with hints and solutions to strengthen your understanding. NSO Science Olympiad Workbook Grade 10 solutions are prepared by Experienced Embibe Experts.

Questions from Anil Ahlawat Solutions for Chapter: Acids, Bases and Salts, Exercise 2: EXERCISES with Hints & Solutions

MEDIUM

10th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 10>Chapter 2 - Acids, Bases and Salts>EXERCISES>Q 16

Ayaan tested the nature of a few common substances with phenolphthalein indicator and summarised the results in the following table.

Test tubes	Colour change with phenolphthalein indicator
1	Colourless
2	Pink
3	Colourless
4	Pink

Which of the following substances could be present in test tubes $1, 2, 3$ and $4$ ?

	1	2	3	4
(A)	Lime juice	Soda water	Lime Water	Vinegar
(B)	Common salt	Lemon juice	Vinegar	Lime Water
(C)	Lemon juice	Lime water	Common salt solution	Baking soda
(D)	Baking soda	Lemon juice	Lime Water	Soda water

MEDIUM

10th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 10>Chapter 2 - Acids, Bases and Salts>EXERCISES>Q 17

While demonstrating acid base reactions, MS. Prabha, a science teacher added sodium oxide to $HCl$ until it was in excess. Which of the following graphs correctly represents the change in $pH$ ?

MEDIUM

10th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 10>Chapter 2 - Acids, Bases and Salts>EXERCISES>Q 18

Aqueous solutions of salts are either acidic, basic or neutral. A few common salts are listed as:

I. Silver chloride

II. Ammonium sulphate

III. Sodium nitrate

IV. Sodium phosphate

V. Sodium acetate

Which of the following correctly matches the given salts with the nature of their aqueous solutions?

Brine solution

	Solution with $pH < 7$	Solution with $pH < 7$	Solution with $pH = 7$
(A)	I,III	II,IV	V
(B)	I,II	IV,V	III
(C)	I	IV,II	III,V
(D)	II	I,IV,III	V

HARD

10th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 10>Chapter 2 - Acids, Bases and Salts>EXERCISES>Q 19

Study the given flow chart carefully and fill in the blanks by choosing an appropriate option.

Question Image

	I	II	III	IV	V	VI
(A)	${NH}_{4} OH$	$NaOH$	$O_{2}$	${Na}_{2} O$	${Cl}_{2}$	$Ca {(OH)}_{2}$
(B)	${NH}_{4} Cl$	${NaHCO}_{3}$	$H_{2}$	${Cl}_{2}$	$NaOH$	${CaOCl}_{2}$
(C)	$NaOH$	${({NH}_{4})}_{2} {CO}_{3}$	$O_{2}$	${Na}_{2} O$	$H_{2}$	${CaCl}_{2}$
(D)	${NH}_{4} OH$	$NaOH$	$H_{2}$	$NaOH$	${Cl}_{2}$	$CaO$

MEDIUM

10th Foundation

IMPORTANT

NSO Science Olympiad Workbook Grade 10>Chapter 2 - Acids, Bases and Salts>EXERCISES>Q 20

Observe the given figure carefully, which represents the decomposition of brine solution by passing electricity.

Question Image

	X	Y	P	Q	R
(A)	At anode	At Cathode	$H_{2}$ gas	${CO}_{2}$ gas	${Na}_{2} {CO}_{3}$
(B)	At anode	At Cathode	${NH}_{3}$ gas	$H_{2}$ gas	${NH}_{4} Cl$
(C)	At anode	At Cathode	${Cl}_{2}$ gas	$H_{2}$ gas	${NaHCO}_{3}$
(D)	At anode	At Cathode	$H_{2}$ gas	${Cl}_{2}$ gas	$NaOH$

Anil Ahlawat Solutions for Chapter: Acids, Bases and Salts, Exercise 2: EXERCISES

Anil Ahlawat Science Solutions for Exercise - Anil Ahlawat Solutions for Chapter: Acids, Bases and Salts, Exercise 2: EXERCISES

Questions from Anil Ahlawat Solutions for Chapter: Acids, Bases and Salts, Exercise 2: EXERCISES with Hints & Solutions

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