Starting with sodium chloride how would you proceed to prepare sodium hydroxide ?

Starting with sodium chloride how would you proceed to prepare sodium hydroxide ?
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Ans. Sodium hydroxide is obtained by electrolysis of an aq.solution of NaCl in castner kellner cell using Mercury cathode and carbon anode .Sodium metal which is discharged at cathode combines with Mercury to form sodium amalgam.Cl2 is evolved at anode. The sodium amalgam thus obtained is treated with water to form sodium hydroxide and hydrogen gas.
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__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine. (A) Chlorine (B) Ammonium chloride (C) Sodium carbonate (D) Sodium bi-carbonate

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The common name for the com-pound having formal NaOH is – (1) Caustic soda (2) Caustic potash (3) Soda ash (4) Sodium hydroxide

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Write two important uses of each of the following: (i)Sodium carbonate (II)Sodium Hydroxide (iii)Sodium hydrogen carbonate

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Why are cimetidine or ranitidine better antacids than sodium bicarbonate or magnesium or aluminium hydroxide ?

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Propionamide on heating with a mixture of bromine and sodium hydroxide gives (a) Propane (b) Propylamine (c) Propanol (d) Ethylamine

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45. When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from (1) Zero to + 1 and zero to –3 (2) Zero to +1 and zero to –5 (3) Zero to –1 and zero to + 5 (4) Zero –1 and zero to + 3

Description : 45. When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from (1) Zero to + 1 and zero to –3 (2) Zero to +1 and zero to –5 (3) Zero to –1 and zero to + 5 (4) Zero –1 and zero to + 3

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Write anote on the Physical Properties of Sodium hydroxide

Description : Write anote on the Physical Properties of Sodium hydroxide 

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Which of the following substances would be the best choice to neutralize sulfuric acid? w) sodium hydroxide x) silicon dioxide y) copper metal z) phosphorus pentoxide

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Last Answer : ANSWER: W -- SODIUM HYDROXIDE

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Description : Chemically, fats are esters of long carbon-chain acids and which of the following: w) ethanol x) glycerol y) ethylene glycol z) sodium hydroxide

Last Answer : ANSWER: X -- GLYCEROL

Glycerine and what other substance are made by heatin animal fats or vegetable oils with sodium hydroxide?

Description : Glycerine and what other substance are made by heatin animal fats or vegetable oils with sodium hydroxide?

Last Answer : ANSWER: SOAP

Which of the following reactions involve NEITHER oxidation nor reduction? w) burning antimony in chlorine x) decomposition of potassium chlorate y) reaction of sodium with water z) reaction of potassium hydroxide with nitric acid

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What is the product formed when sodium bicarbonate is heated strongly? (1) Sodium Carbonate (2) Sodium Hydroxide (3) Sodium Peroxide (4) Sodium Monoxide

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Last Answer : Sodium bicarbonate

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Description : The common name for the compound having formal NaOH is (1) Caustic soda (2) Caustic potash (3) Soda ash (4) Sodium hydroxide

Last Answer : Caustic soda

What is “milk of magnesia” chemically ? (1) Magnesium carbonate (2) Sodium bicarbonate (3) Calcium hydroxide (4) Magnesium hydroxide

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Last Answer : Magnesium hydroxide

Which of the following reagents cannot be used to prepare an alkyl chloride from an alcohol? (a) HCl + ZnCl2 (b) SOCl2 (c) NaCl (d) PCl5

Description : Which of the following reagents cannot be used to prepare an alkyl chloride from an alcohol? (a) HCl + ZnCl2 (b) SOCl2 (c) NaCl (d) PCl5

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Description : What is the double replacement for ammonium chloride plus calcium hydroxide?

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Description : What is the double replacement for ammonium chloride plus calcium hydroxide?

Last Answer : The chemical reaction is:2 NH4Cl + Ca(OH)2 = 2 NH4OH + CaCl2

The major calcium salt in bones is (A) Calcium carbonate (B) Calcium chloride (C) Calcium hydroxide (D) Calcium phosphate

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Last Answer : Answer : D

Milk of magnesia is a suspension of – (1) magnesium sulphate (2) magnesium carbonate (3) magnesium hydroxide (4) magnesium Chloride

Description : Milk of magnesia is a suspension of – (1) magnesium sulphate (2) magnesium carbonate (3) magnesium hydroxide (4) magnesium Chloride

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