Chemistry - Comprehensive Mock Test 18

Question 171 Medium

A concentrated aqueous solution of sodium chloride is called ?

A) aqueous solution B) salt solution C) brine D) lemonade

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Question 172 Easy

Electrolytes convert electricity in ?

A) solid state B) liquid state C) gaseous state D) plasma state

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Question 173 Medium

In thermal power stations carbon atoms undergo oxidation to form ?

A) CO2 B) CO C) H2O D) O2

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Question 174 Medium

Electrodes used in production of sodium metal are ?

A) iron cathode and graphite anode B) sodium cathode and carbon anode C) aluminum cathode and fluoride anode D) none of above

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Question 175 Medium

In chromium plating few drops of Sulphuric acid are added to electrolyte in order to prevent ?

A) oxidation B) reduction C) hydrolysis D) sublimation

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Question 176 Medium

By losing one or two electrons atoms of metal are ?

A) oxidized B) reduced C) hydrogenated D) sublimated

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Question 177 Medium

A reactant containing element that is oxidized is called ?

A) reducing agent B) oxidizing agent C) hydrogen D) sublime

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Question 178 Easy

Electrolysis of brine produces ?

A) chlorine gas B) hydrogen gas C) sodium hydroxide D) all of above

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Question 179 Medium

When zinc is plated on steel, anode is made up of ?

A) steel B) oxygen C) zinc D) carbon

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Question 180 Easy

Galvanic cells are also named as ?

A) electrolytic cells B) battery cells C) Daniel cells D) john cells

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