Question # 1

How much fresh water is used for domestic purpose

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8%

23%

69%

100%

Acetic acid manufactured by

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Distillation

Fermentation

Ozonolysis

Esterification

Sodium is collected over molten sodium chloride in Down's cell, because.

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It does not react with NaCl

It is lighter in weight and floats on molten NaCl

Its reactivity is greater than NaCl

None of these

Which element form an ion with charge +3

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Beryllium

Aluminum

Carbon

Sillicon

Which complex shows zero oxidation state of the transition metal.

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[Fe(CO)5]

K3[Fe(CN)6]

K2[Fe(CN)6]

[Cu(NH3)4]SO4

XeF6 n hydrolysis produces.

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XeOF2

XeOF3

XeOF4

XeF2

In which block of periodic table non metals are present.

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s

p

d

f

Bone ash contain calcium phosphate

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40%

50%

70%

80%

Which one is perchloric acid

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HClO

HClO₃

HClO₄

The percentage of carbon in different types of iron products is in the order of

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cast iron > wrought iron > steel

wrought iron > steel > cast iron

cast iron > steel > wrought iron

cast iron = steel > wrought iron

Half mass of atmosphere gases is present in.

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5-6 km distance above the surface of earth

10 km above the surface

100 km above the surface

56 km above the surface

Which one of the following reactants will be required to form ethyl alcohol form ethyl bromide.

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Alcoholic KOH

Aqueous KOH

Alkaline KMnO4

Sodium metal in ether

Geometrical shape of [CO(NH3)6Cl3

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linear

square planar

Octahedral

Trigonal hypyramid

The percentage of nitrogen in urea is.

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36%

46%

56%

65%

Which of the following the highest hydration energy

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Li⁺

Na⁺

K⁺

Mg⁺⁺

Which one of the following compounds show geometrical isomerism in it.

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1- pentene

1,1 dichloro ethane

all of these

2- Pentene

The Milk of magnesia is used for the treatment of

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Basicity

Rancidity

Acidity

Jaundance

Which one of the following compounds will decolorized both acidified KMnO4 and aqueous bromine.

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Benzene

Ethane

Ethene

Methane

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