Question # 1

Which is the natural sugar found in starchy food.

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Pentose

Dextrose

Hexose

All of them

Which one of the following is polmerized to from benzene?

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ethane

ethene

methane

ethyne

A hydrocarbon has molecular formula C₈H₁₄. What is the molecular formula of the next number of the same homologous series.

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C₉H₁₈

C₉H₁₆

C₉H₂₀

C₉H₁₂

Sodium carbonate is manufactured by.

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Haber's process

Ostwald's process

Solvay's process

All

Enzymes are proteins which have the following properties except.

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They catalyze reaction

They are highly non-spcific

They are highly efficient

They are pro

50% dextrose contains approximate amount of energy.

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250 calories

16 Calories

170 calories

120 calories

Which pollutant is not found in car exhaust gases?

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CO

O₃

NO₂

SO₃

Which gas acts as a glass wall of a green house?

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Oxygen

Carbon dioxides

sulphur dioxide

Hydrogen

Photosynthesis process produces.

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Starch

Cellulose

Sucrose

Glucose

Which one of the following is not air pollutant.

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CO₂

CO

NO₂

O₂

A conjugate base is a specie formed by donating a.

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Proton

Electron pair

Neutron

Electron

When CO₂ is passed through the ammonical brine the only salt that precipitates is:

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NaHCO₃

NH₄HCO₃

Na₂CO₃

(NH₄)₂CO₃

The value of constant of ionic product of water Kw at 25 C.

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1.0 x 10^-4

1.0 x 10¹⁴

1.0 x 10^-4

1.0 x 10⁴

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