Which one of the following pairs is not correctly matched?
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Chemistry GK · all questionsChemistry in Everyday Life
Chemistry in Everyday Life
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The charcoal used to decolourise brown sugar solution is
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Which of the following is not a nitrogenous fertiliser?
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The chief source for the production of nitrogen eous fertilisers is
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Refrigerators keep food unspoiled because
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Nail polish remover contains
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The most popular fertiliser for foliar application is
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Baking soda is
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Select the correct statement
1. Cut glasses are lead glasses.
2. The main raw material for the preparation of soda glass is Na2CO3.
3. Quicklime is CaO.
1. Cut glasses are lead glasses.
2. The main raw material for the preparation of soda glass is Na2CO3.
3. Quicklime is CaO.
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Consider the following statements.
The purpose of adding sodium sulphate and sodium silicate to the detergent in a washing powder is
1. to keep to washing power dry.
2. tomaintain the alkalinity of the powder.
Which of these statements is/are correct?
The purpose of adding sodium sulphate and sodium silicate to the detergent in a washing powder is
1. to keep to washing power dry.
2. tomaintain the alkalinity of the powder.
Which of these statements is/are correct?
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Ceramic balls can be used to
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Which one of the following is used in the production of explosives?
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A mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines?
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Consider the following statements.
1. Hard soaps (common bar soaps) are the sodium salts of fatty acids.
2. Soft soaps are the potassium salts of fatty acids and semi-solid in nature.
Which of the statement(s) given above is/are correct?
1. Hard soaps (common bar soaps) are the sodium salts of fatty acids.
2. Soft soaps are the potassium salts of fatty acids and semi-solid in nature.
Which of the statement(s) given above is/are correct?
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The basic chemical building block of natural rubber obtained from trees is
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Acidic drain cleaners made of . . . . . . . . or . . . . . . . . add are powerful enough to clear heavy-duty hair, food, grease, soap scum or paper-based clogs in 15 minutes or less.
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Which inorganic compound is used to manufacture soap, rayon, paper, explosives, dyes, and petroleum products?
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The freezer in a refrigerator is fitted near the top
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Which of the following substance is highly plastic?
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Q100
Open questionAssertion (A) Synthetic detergents can lather well in hard water.
Reason (R) Synthetic detergents form soluble calcium and magnesium salts with hard water.
Reason (R) Synthetic detergents form soluble calcium and magnesium salts with hard water.
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