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Four students (A),(B),(C) and (D) observ...

Four students (A),(B),(C) and (D) observed the colour and solubility of iron, sulphur and iron, sulphur and iron sulphide in carbon disulphide. The tick mark represents soluble and cross mark represents insoluble, in carbon disulphide. Their observation are tabulated below

The student who correctly reported the observations, is student :

A

A

B

B

C

C

D

D

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The correct Answer is:
C
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LAKHMIR SINGH & MANJIT KAUR-STRUCTURE OF ATOM-Exercise
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  2. The composition of two atomic particles is given below : {:(,"X","Y"...

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  3. Four students (A),(B),(C) and (D) observed the colour and solubility o...

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  4. The white of an egg, common salt, sugar and fine sand are added to wat...

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  5. The correct procedure of heating iron-sulphur mixture to prepare iron ...

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  6. A student while heating solid lead nitrate taken in a test tube would ...

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  7. The following precautions were listed for the experiment on determinat...

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  8. The correct procedure for preparing a colloidal solution of egg albumi...

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  9. Four students (A), (B), (C) and (D) independently observed the evapora...

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  10. A student takes a mixture of sand and ammonium chloride in a china dis...

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  11. A student takes some water in a beaker and heats it over a flame for d...

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  12. Which of the following is the correct set of apparatus to separate com...

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  13. A student added the following substances to water kept in four separat...

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  14. In an experiment, carbon disulphide was added to a test-tube containin...

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  15. The colour of insoluble product formed sodium sulphate and barium chlo...

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  16. A student, by mistake, mixed sulphur powder with iron filings. The fol...

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  17. A student has done the labelling for the experimental set-up for separ...

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  18. A teacher gave an impure sample of alum containing fine sand as impuri...

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  19. The colour of residue left behind on heating lead nitrate when it is s...

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  20. A student took some lead nitrate compound in a boiling tube and heated...

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