Question # 1

The smog having high contents of SO₂is

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Neutral smog

Reducing smog

Oxidizing smog

Artificial smog

Which reagent is responsible for the conversion of ketone to secondar alcohul

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NaAlH

NaBH4

Al

Red P

Primary, secondary aad tertiary alcohols can be identified and distinguished by

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Lucas test

lodoform test

Baeyer's test

Silver mirror test

The number of moles of CO2 which contain 16g of oxygen

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0.25

1.00

1.50

0.50

Which solids are called true solids

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Crystalline

Vitreous

Amorphous

Metallic

Acetic acid is obtained from:

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Red out

Vinegar

Butter

Milk

The graph between pressure and volume at constant temperature for gas is:

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Isobaric

Isothermal

Isotherm

None of above

Major cause of SO2 on global scale is

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Volcanoes

Electric sparks

Combustion

All

The electrolyte used in fuel cell is

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КOH

NaCl(aq)

NaNO3

Molten NaCl

Diffusion of different species is due to difference of

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potential energy

temperature

density

all the above

1 gram molecule refers to amount in grams

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Equivalent to 1 mole of an atom

Equivalent to 1 mole of a molecule

Equivalent to 1 mole of an ionic species

Of an ionic compound

When fused PbBr2 is electrolyzed :

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Lead appears at anode.

Lead appears at cathode.

Bromine appears at cathode.

Lead appears at both electrodes.

Which of the following has the maximum number of unpaired d-electrons?

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Zn

Fe²⁺

Ni³⁺

Cu⁺

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

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Hydrocarbon which is liquid at room temperature is

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Pentane

Butane

Propane

Ethane

Linear shape is associated with set of hybrid orbitals?

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sp

sp2

sp3

dsp2

A colloidal gel is:

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3Ca, Al₂O₃

CaSO_2.2H₂O

3CaAl₂O₃.3CaSO₄.2H₂O

3Ca.Al₂O₃.6H₂O

Which one of the following has continuous solubility curve

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NH₄NO₃

CaCI

CaCI₂. 6H₂O

Na₂SO₄. 10H₂O

A salt producing hydrocarbon among these compounds is

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Ehyne

Ethene

Methane

Ethane

Which of the following is not affected by light

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Which of the following molecules has unpaired electrons in anti-bonding molecular orbitals?

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O₂

N₂

Br₂

F₂

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8

4

9

3

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