The following substances were added to water in a beaker as shown below. The mixture was stirred well. A suspension was observed in the beaker.

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Important Questions on Is Matter Around Us Pure?

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IMPORTANT

Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>PRACTICE QUESTIONS>Q 2

Out of the given four mixtures, the one that appears clear and transparent is:

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IMPORTANT

Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>PRACTICE QUESTIONS>Q 3

Rama heated a mixture of iron filings and sulphur in a hard glass test tube for sometime till a grey- black product was formed. She cooled the test tube and then added $2 mL$ carbon-disulphide in it and shook the contents of the test tube. The observation made by her was likely to be as shown below.

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Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>PRACTICE QUESTIONS>Q 4

The equipment required to prepare iron sulphide by heating a mixture of iron filings and sulphur powder is:

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Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>PRACTICE QUESTIONS>Q 7

Four students prepared mixtures in water by taking sugar, sand, chalk powder and starch respectively, in four different test tubes. After stirring the mixture that appeared clear and transparent was that of:

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Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>PRACTICE QUESTIONS>Q 8

Rohit mixed starch with water, boiled the mixture well and stirred it. He observed that:

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IMPORTANT

Modern's abc+ of SCIENCE CHEMISTRY FOR Class IX>Chapter 2 - Is Matter Around Us Pure?>PRACTICE QUESTIONS>Q 9

You are provided with a mixture of iron filing and sulphur powder. When you add carbon disulphide to the mixture, you would observe:

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