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Acids, Bases and Salts - 6
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Q1. What happens when soap is applied on a cloth having turmeric stain?
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1 point
Color of stain changes to blue
Color of stain changes to greenish black
Color of stain changes to brown red
No effect seen on color of stain
Q2. What is name of salts formed by sulphuric acid?
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Sulphuric salt
Sulphate salts
Acid salts
Salts of acid family
Q3. Which of the following is known as common salt?
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Calcium chloride
Potassium chloride
Copper chloride
Sodium chloride
Q4. Which of the following salt was prepared by Mahatma Gandhi while Dandi March?
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1 point
Calcium chloride
Potassium chloride
Copper chloride
Sodium chloride
Q5. Which of the following is known as soda ash?
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1 point
Sodium carbonate
Sodium bicarbonate
Sodium carbonate decahydrate
Calcium carbonate
Q6. Which of the following is used in fire extinguisher?
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1 point
Sodium carbonate
Sodium bicarbonate
Potassium carbonate
Calcium carbonate
Q7. What is the chemical name of baking powder?
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1 point
Sodium carbonate
Sodium bicarbonate
Potassium carbonate
Calcium carbonate
Q8. What is the use of Plaster of Paris?
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1 point
In plaster of fractured bones
In making of false ceiling
In making of mould toys
All of the above
Q9. What is the chemical formula of gypsum?
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CaSO4 . 2 H2O
CaSO4 . 10 H2O
CaSO4 . ½ H2O
CaSO4
Q10. What is the nature of bleaching powder?
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Oxidising agent
Reducing agent
Clotting agent
All of the above
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