Question # 1

Part of fresh water consumed in domestic purpose:

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1%

2%

69%

8%

At absolute zero the molecules of hydrogen gas will have

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Only translatioral motion

Only vibrational motion

Only rotational motion

All the motion are ceased

As gases can adopt the shape of the container so they have

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no fixed shapes

fixed shapes

different shapes

definite shapes

Glycogen on hydrolysis give

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Glucose

Lactose

Fructose

None

Equal volumes of gases at the same temperature and pressure contain equal number of particles.This statement is direct consequence of

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Perfect gas law

Partial law of volumes

Charle's law

Ideal gas equation

Elements of group IV-A are

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neither strongly electropositive nor strongly electronegative

strongly electropositive

strongly electronegative

none of these

Methyl mercaptan, CH₃SH, is one of the substances responsible for bad breath and is often used to impart a smell to natural gas in a pipeline.
What will be formed when CH₃SH is burned in an excess of air?

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CO CO₂ H₂S

CO H₂O SO₃

CO₂ H₂O SO₂

CO₂ H₂O SO₃

Protein are classified into

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Simple protein

Complex proteins

Derived proteins

All of these

How magnesium reacts with water?

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In frozen ice water

With cold water

In with steam

In hot state

In which of the following molecules strongest hydrogen bond is shown

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water

ammonia

hydrogen fluoride

hydrogen sulphide

Tasteless sugars are:

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monosaccharides

trisaccharides

oligo saccharides

poly saccharides

Which of the following metals is sometimes found in native state in nature?

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Al

Cu

Fe

Mg

When a metal is dipped in 1 molar of its solution at 298 K. then potential set up is called

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Standard electrode potential

Electric charge

Ionization potential

Electroplating

Propyne on hydrolysis in presence of H₂SO₄and HgSO₄gives

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Acetaldehyde

Acetone

Formaldehyde

None

Soil salinity can be measured by

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Calorimeter

Potometer

Porometer

Conducitvity meter

Acetic acid is 1.33% ionized, In 1000 molecules of 0.1 M acetic acid the number of H⁺ions is

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1.33

13.3

1.33

1

When formaldehyde is added to Grignard reagent we get

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Aldehyde

Acetone

Primary alcohol

Secondary alcohol

In a heterollytic bond fission reaction

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A molecule of H₂O is formed

A molecule of H₂O is eliminated

A free radical is formed

A positive and a negative ion is formed

Which of the following elements is not present abundantly in earth's crust?

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Silicon

Aluminium

Sodium

Oxygen

The change in concentration of reactant or product per unit time is called :

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Rate constant.

Rate of reaction.

Rate equation.

Rate law.

Which one of the following gases is used for artificial ripening of fruits

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Ethane

Ethyne

Methane

Propane

To differentiate isomers we use

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n-

iso-

neo

All of them

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