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Acids, Bases & Salts Mock Tests

28 questions available

Acids, Bases & Salts Mock Test 1

Questions: 28

नमूना प्रश्न

DSC Science
A solution turns red litmus paper blue. What is the most likely pH of this solution?
A 2
B 5
C 7
D 10
Class 7 Science
Which of the following is used to treat indigestion?
A Hydrochloric acid
B Antacids like baking soda
C Vinegar
D Lemon juice
DSC Science
What colour does turmeric indicator turn when added to a basic (alkaline) solution?
A Red
B Blue
C Pink
D Green
Class 7 Science
Which indicator turns red in an acidic solution and blue in a basic solution?
A Turmeric
B Litmus
C China rose
D Phenolphthalein
Class 7 Science
Neutralisation is the reaction between:
A Acid and Salt
B Base and Salt
C Acid and Base
D Acid and Acid
Class 7 Science
Which natural indicator is obtained from a lichen?
A Litmus
B Turmeric
C China rose
D Red rose
Class 7 Science
What is the neutralisation reaction?
A Acid + base → salt + water
B Acid + metal → salt + water
C Acid + water → base
D Base + salt → acid
Class 7 Science
Which of the following is used to treat indigestion?
A Hydrochloric acid
B Antacid (magnesium hydroxide)
C Sodium hydroxide
D Acetic acid

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