Question # 1

Ethyne on oxidation with strong alkaline KMnO4 changes to

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Ethyl alcohol

Acetaldehyde

Vinyl alcohol

Glyoxal

One of following is argillaceous material

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Marble

Clay

Lime

Marine Shell

An ester can be prepared by the reaction of.

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Two alcohols

Alcohol and an aldehyde

An alcohol and an organic acid

an acid and a ketone

What are the number of the electrons in valence shell of P in PCl3

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4

6

8

10

Which one of the followings is not observed in the combustion of pure methane in a plentiful supply of air

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Water in produced

CO2 is produced

The flame is smoky

Energy is released

Which one is not property or uses of mustard gas

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Used in 1st world war

Powerful vesicant

High boiling liquid

High boiling gas

Which one is perchloric acid

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HClO

HClO₃

HClO₄

Which field produces significant amount of methane in the atmosphere

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paddy field

Cotton field

Can sugar field

Wheat field

Formalin is

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10% solution of formaldehyde in water

20% solution of formaldehyde in water

40% solution of formaldehyde in water

60% solution of formaldehyde in water

Which chemical reduces the acidity of soil.

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Lime

Urea

Ammonium nitrate

Ammonium sulphate

Who gave the law of Triads in 1829?

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Dobereiner

Mosely

Newland

Mendeleev

The mineral CaSO₄.2H₂O has the general name

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Dolomite

Gypsum

Calcite

Epsom Salt

Phenol is the derivative of

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Alkane

Aromatic hydrocarbon

Aliphatic hydrocarbon

Alkene

Element of which group are called non typical transition elements.

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IB

II B

II A

VII B

Ethers show the phenomenon of

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Position Isomerism

Functional group isomerism

Metamerism

Chain isomerism

In which form, glucose is stored in the liver

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Lactic acid

Maltose

Ribose

Glycogen

Preparation of vegetable ghee involves

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Halogenation

Hydrogenation

Hydroxylation

Dehydrogenation

Which of the following is Ortho and Para directing group

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-I

-CHO

-COR

-NH₂

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