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Fill in the following blanks: (a) Comm...

Fill in the following blanks:
(a) Common salt is obtained from sea-water by the process of_____
(b) Rock salt is mined just like_____
(c) Chemical formula of washing soda is_____
(d) Sodium hydrogencarbonate is_____ soda whereas sodium carbonate is ______soda.
(e). The chemical formula of plaster of Paris is______

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(a) evaporation
(b) coal
(c) `Na_(2)CO_(3).10H_(2)O`
(d) Baking,washing
(e) `CaSO_(4).(1)/(2)H_(2)O`
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The Salt Story From: The New Indian Express 9 March 2021 The salt pans in Marakkanam, a port town about 120 km from Chennai are the third largest producer of salt in Tamil Nadu. Separation of salt from water is a laborious process and the salt obtained is used as raw materials for manufacture of various sodium compounds. One such compound is Sodium hydrogen carbonate, used in baking, as an antacid and in soda acid fire extinguishers. The table shows the mass of various compounds obtained when 1litre of sea water is evaporated How many grams of Magnesium Sulphate are present in 135g of solid left by evaporation of sea water?

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Fill in the following blanks with suitable words: (a). Magnesium liberates_____gas on reacting with hot boiling water. (b). The white powder formed when magnesium ribbon burns in oxygen is of______ (c). Ordinary aluminium strips are not attacked by water because of the presence of a layer of ______ on the surface of aluminium. (d). A metal having low melting point is_____ but a non-metal having very high melting point is_____ (e). Calcium is a ______reaactive metal than sodium.

LAKHMIR SINGH & MANJIT KAUR-ACID, BASES AND SALTS-Exercise
  1. The electrolysis of an aqueous solution of sodium chloride gives us th...

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  2. During the electrolysis of a saturated solution of sodium chloride, wh...

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  3. Fill in the following blanks: (a) Common salt is obtained from sea-...

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  4. Complete and balance the following chemical equations: (a). NaCl(aq)...

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  5. What is washig soda? State two properties and two uses of washing soda...

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  6. Write the formulae of sodium chloride and sodium carbonate. Explain wh...

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  7. Write the chemical formula of ammonium chloride. Explain why an aueous...

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  8. What is baking soda? Write the chemical name of baking soda. Give the ...

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  9. Describe how sodium hydrogencarbonate (baking soda) is produced on a l...

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  10. What happens when a cold and concentrated solution of sodium chloride ...

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  11. (a). What is the common name of sodium hydrogencarbonate? ltBrgt (b). ...

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  12. (a). What will happen if heating is not controlled while preparing pla...

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  13. (a) What happens when copper sulphate crystals are heated strongly? Ex...

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  14. (a). What is the chemical name of bleaching powder.? (b) What is the...

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  15. (a) Name a sodium compound used for softening hard water. (b) Which ...

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  16. (a). What is gypsum? What happens when gypsum is heated to 100^(@)C (3...

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  17. (a) What is baking powder? How does it make the cake soft and spongy? ...

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  18. State two uses each of the following compounds: (a) Sodium hydroxide...

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  19. (a) What is the common name of the compound CaOCl(2)? (b) Name the r...

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  20. (a). What happens when concentrated solution of sodium chloride (brine...

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