Give the formula of: (i) baking soda (ii) salt cake? from Che

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The s-Block Elements

Short Answer Type

31.

What is brine?

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32.

Why does table salt get wet in rainy season?

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33.

What is the difference between soda ash and washing soda?

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34.
Give the formula of:
(i) baking soda (ii) salt cake?

(i) Baking soda: NaHCO₃(ii) Salt cake: Na₂SO₄.

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35.

How will you distinguish between sodium carbonate and sodium bicarbonate?

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36.

What is fusion mixture?

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37.

What is black ash?

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38.

Which alkali metal and which alkaline earth metal is radioactive? Give their atomic number also?

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39.

Why does sodium hydride conduct current when melted?

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40. Why does sodium hydride act as a reducing agent?

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