Question # 1

Denaturation of protein means the structure of protein is disrupted indicate which factor does not denature protein

Choose an answer

Oxidizing agent

Heat protein

Keeping pH 7.35

pH changes

2,5-dimethyl-1-hexene has

Choose an answer

Two sp2 hybridized carbons

Six sp2 hybrid carbons

Two double bonds

Four pi electrons

Choose the correct statements

Choose an answer

SO₂affects the nucleus

SO₂affects plasmodesmata

SO₂affects cell wall

SO₂affects all membrane systems

At present the number or cement factories in Pakistan are:

Choose an answer

20

22

25

30

4.4 g of CO₂ contains how many litres of CO₂ at STP?

Choose an answer

2.4 litre

2.24 litre

44 litre

22.4 litre

Choose the crop for which ammonium nitrate is not used:

Choose an answer

paddy rise

cotton

wheat

sugar cane

Exhaust fumes of cars contain which poisonous gas

Choose an answer

CH₄

C₂H₆

CO

All of these

The forces which are present between the ions and the water molecules are known as

Choose an answer

dipole-induced dipole forces

dipole-dipole forces

ion-dipole forces

London dispersion forces

Equal volumes of ideal gases contain equal number of molecules at:

Choose an answer

Same temperature

Same pressure

Same environmental conditions

Both (A) and (B)

Which of the following is addition polymerization

Choose an answer

PVA

Polystyrene

Both

None

Which of the following does not give yellow precipitate with I2+ NaOH

Choose an answer

Acetone

Benzaldehyde

Acetildehyde

Acetophenone

Aldol condensation is actually

Choose an answer

Electrophilic addition of carbonation

Electrophilic addition of carbonium ion

Nucleophilic addition of carbonation

Nuclephilic addition of carbonium ion

Matter is defined as any thing which occupies space and:

Choose an answer

Molecules

Mass

Compound

Molecules

A smuggler could not carry gold by chemically depositing iron on the gold surface since

Choose an answer

Gold is denser

Iron rusts

Gold has higher reduction potential then iron

Gold has lower reduction potential then iron

In an exothermic reaction

Choose an answer

Enthalpy of reactants is lesser than that of products

Enthalpy of reactants is greater than that of products

Heat is transferred form surrounding into the system

Enthalpy of reactants and products same

The film forming components of paints are

Choose an answer

Resins

Thinners

Pigments

Driers

Potable water is considered to be

Choose an answer

Safe for human consumption

Not safe for human consumption

The surface water

The ground water

Out of Cu, Ag, Fe and Zn the metal which can displace all others from theri salt solution is

Choose an answer

Ag

Cu

Zn

Fe

Camphor is often used in molecular mass determination because

Choose an answer

It is solvent for organic substances

It is readily available

It has a very high cryoscopic constant

It is volatile

In the periodic table, the element with atomic number 16 will be placed in the group

Choose an answer

Fourteen

Sixteen

Thirteen

Fifteen

Silver oxide battery has a voltage of

Choose an answer

2.0 V

1.5 V

2.5 V

1.0 V

The liquid obtained after passing the mixture through filter paper is termed as :

Choose an answer

Extract.

Residue.

Filtrate.

Sample.

More Classes

Other Links

Chemistry General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer