Kerala (English Medium) Std 9 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
____________ is known as baking soda.

(A) Sodium hydrogen carbonate	(B) Sodium carbonate
(C) Sodium hydroxide	(D) Potassium hydroxide

Question-2
Which of the following phenomena occur when a small amount of acid is added to water?
Ionization, Neutralisation, Dilution, Salt formation

(A) Ionization and Neutralisation,	(B) Ionization and Dilution
(C) Dilution and Neutralisation	(D) Dilution and Salt formation

Question-3
A solution reacts with crushed egg- shell to give a gas that turns lime water milky. The solution contains

(A) Nacl	(B) HCl
(C) LiCl	(D) KCl

Question-4
A solution turns red litmus blue, its pH is likely to be

(A) 1	(B) 4
(C) 5	(D) 10

Question-5
Oxalic acid is found in

(A) Curd	(B) Spinach
(C) Amla	(D) Onion

Question-6
Which among the following is not a base?

(A) NaOH	(B) KOH
(C) NH₄OH	(D) C₂H₅OH

Question-7
Which of the following statement is not correct.

(A) All metal carbonates react with acid to give a salt, water and carbon dioxide.	(B) all metal oxides react with water to give salt and acid
(C) Some metals reacts with acids to give salt and hydrogen	(D) Some non- metal oxides react with water to form an acid

Question-8
The pH of the gastric juices released during digestion is

(A) less than 7	(B) more than 7
(C) equal to 7	(D) equal to 0

Question-9
The acid present in ant's sting is

(A) Citric acid	(B) Acetic acid
(C) Lactic acid	(D) Formic acid

Question-10
_________is a natural indicator which is extracted from lichens.

(A) Litmus	(B) Turmeric
(C) China rose	(D) Lilly

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Std 9

Kerala (English Medium)

Practice in Related Chapters
The World of Carbon
Some non-metals in nature
Metals
Chemistry In Daily Life
Chemical Bonding
Separation of Mixtures
Nature of Materials
Acids and Alkalies
Structure of Atom