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(a). What is plaster of paris? Write the...

(a). What is plaster of paris? Write the chemical formula of plaster of paris.
(b) How is plaster of paris prepared? Write chemical equation of the reaction involved.
(c) Explain why plaster of paris should be stored in a moisture-proof container.
(d) State two important uses of plaster of paris.

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LAKHMIR SINGH & MANJIT KAUR-ACID, BASES AND SALTS-Exercise
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  3. (a). What is plaster of paris? Write the chemical formula of plaster o...

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  4. The salt which will give an acidic solution on dissolving in water is:

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  5. One of the following salts will give an alkaline solution on dissolvin...

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  6. The salt which will give a neutral solution on dissolving in water wil...

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  7. The products of chlor-alkali process are :

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  8. The number of molecules of water of crystallisation present in washing...

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  9. The salt whose aqueous solution will turn blue litmus to red is:

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  10. The aqueous solution of one of the following salts will turn red litmu...

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  11. The salt whose aqueous solution will have no effect on either red litm...

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  12. The aqueous solution of one of the following salts will turn phenolpht...

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  13. The formula of baking soda is:

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  14. Which of the following is treated with chlorine to obtain bleaching po...

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  15. Plaster of paris is prepared by heating one of the following to a temp...

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  16. A salt whose aqueous solution will have a pH of more than 7 will be:

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  17. A salt is dissolved in water and the pH of this salt solution is measu...

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  18. Which of the following salts will give an aqueous solution having pH o...

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  19. P and Q are aqueous solutions of sodium chloride and sodium hydroxide,...

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  20. The metal salt A is blue in colour. When salt A is heated strongly ove...

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