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Blue coloured copper sulphate crystals b...

Blue coloured copper sulphate crystals become colourless n heating.

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Give scientific reasons: Copper sulphate crystals turn to a white amorphous powder on heating.

Give scientific reasons for the following: When zinc granules are added to copper sulphate solution, the blue coloured solution turns colourless.

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When excess of ammonia is added to copper sulphate solution, the deep blue coloured complex id formed. The complex is ___________.

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CHETANA PUBLICATION-MAS_01-EXERCISE
  1. Motion is relative.

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  2. An exploding fire cracker lights as well as makes a sound.

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  3. Blue coloured copper sulphate crystals become colourless n heating.

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  4. Solve the following examples: If the energy of a ball falling from a ...

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  5. Deduce the number of molecules in the compound in the given quantity. ...

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  6. Explain the following reactions with the help of balanced equations: ...

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  7. Calculate the potential difference across a 7 Omega resistor carrying ...

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  8. Draw the symbol fo voltmeter and state its use.

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  9. Measure the distance between points A and B in different ways as shown...

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  10. Now measure the distance along the dotted line. Which distance is corr...

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  11. Every morining, Swaralee walks round the edge of a circular field havi...

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  12. If a car, starting from point P, goes to point Q (see figure) and then...

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  13. Point out the mistakes in the figure given below.

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  14. How will the compounds, MgCl2 and CaO be formed from their elements?

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  15. Solve: Two resistors having resistance of 16 and 14 are connected in...

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  16. Use your Brain Power! Can your father climb stairs as fast as you can...

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  17. Will you fill the overhead water tank with the help of a bucket or an ...

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  18. Suppose Rajashree, Yash and Ranjeet have to reach the top of a small h...

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  19. M is a bivalent metal. Write down the steps to find the SCImical formu...

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  20. Answer the following: (Any 2).. What are the implications of Newton'st...

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