CBSE Class 7 Science Acids Bases and Salts MCQs

Refer to CBSE Class 7 Science Acids Bases and Salts MCQs provided below. CBSE Class 7 Science MCQs with answers available in Pdf for free download. The MCQ Questions for Class 7 Science with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 7 by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 5 Acids Bases and Salts are an important part of exams for Class 7 Science and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 7 Science and also download more latest study material for all subjects

MCQ for Class 7 Science Chapter 5 Acids Bases and Salts

Class 7 Science students should refer to the following multiple-choice questions with answers for Chapter 5 Acids Bases and Salts in Class 7. These MCQ questions with answers for Class 7 Science will come in exams and help you to score good marks

Chapter 5 Acids Bases and Salts MCQ Questions Class 7 Science with Answers

Acids, Bases, and Salts

Question. Acids are 
(a) Sour in taste
(b) Sweet in taste
(c) salty in taste
(d) Bitter in taste

Answer: A

Question. Bases are 
(a) Sour in taste
(b) Sweet in taste 
(c) salty in taste 
(d) Bitter in taste

Answer: D

Question. The substances that are used to test whether a substance is acidic or basic is called 
(a) Indicator
(b) Acid 
(c) Base
(d) Salt

Answer: A

Question. Give the chemical name of Lime water
(a) Calcium hydroxide
(b) Magnesium hydroxide
(c) Ammonium hydroxide 
(d) Sodium hydroxide 

Answer: A

Question. Give the chemical name of Milk of magnesia 
(a) Calcium hydroxide
(b) Magnesium hydroxide 
(c) Ammonium hydroxide
(d) Sodium hydroxide 

Answer: B

Question. Give the chemical name of Window cleaner
(a) Calcium hydroxide
(b) Magnesium hydroxide 
(c) Ammonium hydroxide 
(d) Sodium hydroxide 

Answer: C

Question. Litmus paper (purple colour) in distilled water when added to an acid changes to 
(a) Red
(b) Blue
(c) Green
(d) Violet 

Answer: A

Question. The solutions which do not change the colour of either red or blue litmus are known as 
(a) Acid Solutions
(b) Base Solutions 
(c) Neutral Solutions
(d) indicator 

Answer: C

Question. Find the natural indicator from the following
(a) China Rose
(b) Vinegar 
(c) Phenolphthalein
(d) Methyl Orange

Answer: A

Question. Phenolphthalein gives ____________colour in acid medium 
(a) Pink
(b) Colourless 
(c) Green
(d) Red

Answer: A

Question. The sting of an ant contains ___________. 
(a) Hydrochloric acid
(b) Formic acid 
(c) sulphuric acid
(d) Ethanoic acid

Answer: B

Question. The effect of sting of an ant can be neutralised by rubbing with
(a) Calcium carbonate
(b) Sodium Carbonate 
(c) Sodium hydrogen carbonate 
(d) Calciumchloride 

Answer: C

Question. Blue litmus paper is dipped in a solution. It remains blue. What is the nature of solution ?
(a) Acid and base
(b) Base and neutral
(c) Acid apd neutral
(d) None of these

Answer:  B

Question. Which feels soapy on touch ?
(a) Acids
(b) Bases
(c) Both (a) and (b)
(d) None of these

Answer:  B

Question. Litmus is extracted from
(a) curd
(b) grapes
(c) lichens
(d) cabbage

Answer:  C

Question. Process in which acids and bases react to form salt and water is called
(a) neutralisation
(b) hydrogenation
(c) sublimation
(d) all of these

Answer:  C

Question. On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution?
(a) Basic
(b) Either acidic or basic
(c) Either acidic or neutral
(d) Either basic or neutral

Answer:  C

Question. Acid used in eye wash is
(a) carbonic acid
(b) acetic acid
(c) benzoic acid
(d) boric acid

Answer:  D

Question. When CO2 gas is passed through limewater, it turns milky. Which of the following compounds is responsible for this milkiness ?
(a) Calcium oxide
(b) Calcium chloride
(c) sodium carbonate
(d) Calcium carbonate

Answer:  D

Question. Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed.
(a) Yellow in both acid and base
(b) Yellow in acid and red in base
(c) Pink in acid and yellow in base
(d) Red in acid and blue in base

Answer:  B

Question. Acids taste
(a) sour
(b) sweet
(c) bitter
(d) salty

Answer:  A

Question. Neutralisation reactioñ is a
(a) physical and reversible change
(b) physical and irreversible change
(c) chemical and reversible change
(d) chemical and irreversible change

Answer:  D

Question. How will you classify the reaction between NaOH (aq) and HCl (aq)?
(a) Conbination
(b) Displacement
(c) Dissociation
(d) Neutralisation

Answer:  D

Question. When we suffer from acidity, we should take
(a) iron tonic
(b) vitamins
(c) antacid
(d) lactocalamine

Answer:  C

Question. The nature of bases is
(a) acidic
(b) basic
(c) neutral
(d) all of these

Answer:  B

Question. Common salt is
(a) acidic
(b) basic
(c) neutral
(d) none of these

Answer:  C

Question. The acid that our stomach releases is:
(a) sulphuric acid
(b) nitric acid
(c) hydrochloric acid
(d) formic acid

Answer:  C

Question. The most commonly used natural indicator is
(a) turmeric
(b) beetroot
(c) China rose petal
(d) litmus

Answer:  D

Question. In neutralisation reaction:
(a) heat is absorbed
(b) heat is evolved
(c) neither heat is absorbed nor evolved
(d) none of these

Answer:  B

Question. When phenolphthalein is added to a acidic solution, it gives
(a) pink colour
(b) red colour
(c) blue colour
(d) no colour

Answer:  D

Question. Neutralisation is a reaction between
(a) two acids
(b) two bases
(c) one acid and one base
(d) one acid and one neutral substance

Answer:  C

Question. Which of the following substances makes the fruits sound.
(a) Acids
(b) Salts
(c) Bases
(d) None of these

Answer:  A

Question. The colour of litmus in distilled water is:
(a) red
(b) green
(c) blue
(d) purple

Answer:  D

Question. Ammonia that turns red litmus blue is:
(a) acidic
(b) basic
(c) neutral
(d) none of these

Answer:  B

Question. If the soil is too basic, it is treated with:
(a) quicklime
(b) salt
(c) organic matter
(d) water

Answer:  C

Question. Which of the following turns colourless solution of phenol¬phthalein into pink solution ?
(a) Salt
(b) Base
(c) Acid
(d) All of these

Answer:  B

Question. Magnesium hydroxide is found in:
(a) soap
(b) lime water
(c) milk of magnesia
(d) vegetable

Answer:  C

Chapter 01 Nutrition in Plants
CBSE Class 7 Science Nutrition in Plants MCQs
Chapter 02 Nutrition in Animals
CBSE Class 7 Science Nutrition in Animals MCQs
Chapter 05 Acids Bases and Salts
CBSE Class 7 Science Acids Bases and Salts MCQs
Chapter 06 Physical and Chemical Changes
CBSE Class 7 Science Physical and Chemical Changes MCQs
Chapter 07 Weather Climate and Adaptations of Animals to Climate
CBSE Class 7 Science Weather and Climate MCQs
Chapter 08 Winds Storms and Cyclones
CBSE Class 7 Science Winds Storms and Cyclones MCQs
Chapter 10 Respiration in Organisms
CBSE Class 7 Science Respiration in Organisms MCQs
Chapter 11 Transportation in Animals and Plants
CBSE Class 7 Science Transportation in Animals and Plants MCQs
Chapter 12 Reproduction in Plants
CBSE Class 7 Science Reproduction in Plants MCQs
Chapter 14 Electric Current and Its Effects
CBSE Class 7 Science Electric Current and its Effects MCQs
Chapter 16 Water A Precious Resource
CBSE Class 7 Science Water A Precious Resource MCQs
Chapter 17 Forests Our Lifeline
CBSE Class 7 Science Forests Our Lifeline MCQs
Chapter 18 Wastewater Story
CBSE Class 7 Science Wastewater Story MCQs

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