Question # 1

Crystal can be classified in to ......basic crystal habits

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7

4

14

3

Example of essential aromatic amino acids

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Theronine

Alanine

Phenyl alanine

Glycine

The compound used to distinguish the ethyne and ethene is

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Alkaline KMnO4

Ammonical AgNO3

Bromine water

Tollen's Reagent

A compound X has all of the properties below. It is a liquid at 25°C it mixes completely with water it reaets with aqueous sodium hydroxide, What could X be?

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_{Ethanoic acid}

Ethene

Ethanol

Ethyl ethanoate

The % of CO₂in the atmosphere is

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3.0%

0.03%

0.3%

0.5%

Amino acids which contain two amino groups are called

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Acidic amino acids

Basic amino acids

Neutral amino acids

Amphoteric amino acids

The pressure exerted by gas molecules is due to their

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collisions

densities

masses

kinetic energy

The words smog is a combination of smoke and:

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fog

foke

fork

fizzy

An oil of fat with no double bond have iodine number:

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Zero

100%

50%

Minimum

How much quantity of total water is available as fresh water

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3%

1%

10%

21%

Li resembles with Mg, because

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the ratio of their charge to size is nearly the same

both have nearly same size

both are metallic in nature

both are found together in nature

The nitrogen present in some fertilizers helps plants

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To fight against disease

To produce fat

To undergo photosynthesis

To produce protein

Hydrocarbon which is liquid at room temperature is

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Pentane

Butane

Propane

Ethane

Alkanes have functional group :

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----X

--OH

----COH

No functional group

Lactic acid on heating with dil. H₂SO₄gives

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Acetic acid

Propionic acid

Acrylic acid

Formic acid

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The value of K_pfalls with rise in temperature

The value of K_pfalls with increasing pressure

Addition of V₂O₅catalyst increase the concentration of SO₃

The value of K_pis equal to K_c

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Reaction occurs at STP

Reaction is exothermic

Reaction is endothermic

Number of moles of production and reactant are same

The quantum number which determines the shape of the orbital is

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principal

azimuthal

magnetic

spin

Distillation of calcium salts of acetic acid and formic acids gives acetaldehyde. What compound would be obtained if only calcium salt of acetic acid is distilled

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Formaldehyde

Butyraldehyde

Propionaldehyde

Acetone

Which of the following metal exhibits more than one oxidation?

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Na

Mg

Fe

Al

According to Lewis concept ethers behave as:

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Acid

Base

Acid as well as a base

None of them

Which of the following fertilizers is useful for paddy rice

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Ammonium nitrate

Ammonium sulphate

Urea

Ammonium chloride

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