Question # 1

The kinetic theory of gases predicts that total kinetic energy of a gaseous assemble depends on

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Pressure of the gas

Temperature of the gas

Volume of the gas

Pressure, temperature, and volume of the gas.

Carbon atom holding halogen in aryl halides is

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sp²-hybridesed

sp³-hybridesed

sp-hybridesed

sp³d-hybridesed

At room temperature formaldehyde is

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Gas

Liquid

Solid

None of the above

The total number of protons in 10 g of calcium carbonate is (N₀= 6.023 x 10²³)

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1.5057 x 10²⁴

2.0478 x 10²⁴

3.0115 x 10²⁴

4.0956 x 10²⁴

Acetylene gives

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White ppt. with ammonical AgNO₃and red ppt. with ammonical Cu(NO₃)₂

White ppt. with ammonical AgNo_{3 and red ppt. with ammonical}Cu₂Cl₂

White ppt. with both

Red ppt. with both

Which has largest radius?

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CO³⁺

Mn³⁺

Fe³⁺

Cr³⁺

Which of the following cannot be produced by acidic dehydration of alcohols?

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Ethers

Aldehyde

Alkyl Hydrogen sulphate

Alkene

The order of reactivity of halogens in aliphatic substitution reactions is

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Br2 > C12 > F2

Cl2 > Br2 > F2

Cl2 C12 > Br2

F2 > Br2 > C12

In which molecule carbon atom is sp²hybridized

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CH₄

C2H₄

C₂H₂

None of the above

Dilute hydrochloric acid solution cannot be concentrated by boiling beyond

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11%

33%

44%

22%

Reaction of ethylamine with chloroform in alcoholic KOH produces

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CH₃OH

CH₃NC

C₂H₅NC

C₂H₅CN

An endothermic reaction is one in which the reacting substances

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Have more energy than the products

Have less energy than the products

Have the same energy as the products

Are at a higher temperature than the products.

The weight of 11.2 litres of CO₂at S.T.P. would be

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88 g

44 g

32 g

22 g

The maximum number of electrons in a subshell for whichι = 3 is

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14

10

8

4

Phenol is heated with CCl₄and alkaline KOH when salicylic acid is produced. The reaction is known as

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Frledel-Craft reaction

Riemer-Tiemann's reaction

Rosenmund's reaction

Sommelet reaction

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