Question # 1

One of the following is neutral amino acid

Choose an answer

Arginine

Lysine

Glutamine

Valine

In Pakistan consumption per person is:

Choose an answer

8kg

5kg

10kg

6kg

The %age of nitrogen in urea is:

Choose an answer

46

60

70

80

Which is the chemical formula of calcium super phosphate:

Choose an answer

CaH₂PO₄

CaHPO₄

Ca(H₂PO₄)₂

none of above

What is the morality of a solution containing 15g of urea is 500cm³ of solution?

Choose an answer

1M

0.5M

2M

1.5M

Cooling happens under the Joule Thomson Effect due to sudden:

Choose an answer

Contraction.

Absorption.

Expansion.

All of above.

An ideal gas cannot be liquefied because:

Choose an answer

It solidify before becoming a liquid

Its critical temperature is always above 0^oC

It is molecule are relatively smaller in size.

Forces operative between its molecules are negligible

An excellent source of energy without causing pollution is

Choose an answer

Fossil fuel

Sun

Petroleum

Nuclear reactor

At constant pressure, if the original volume is 546 cm³at which temperature the volume of gas 552 cm³

Choose an answer

1°C

2°C

3°C

4°C

chemist was able to measure the value of lattice energy of KCI to be 690 kj/mol.

From this experiment , he concluded that:

Choose an answer

lattice energy of KBr is 665 kj/mol and that of Ki is 630 kj/mol

lattice energy of KBr is 765 kj/mol and that of Kl 730 kj/mol

lattice energy of KBr is 730 kj/mol and that of Ki 765 kj/mol

lattice energy of KBr is 630 kj/mol and that of kL 665 KJ/mol

Sulphate aerosols cause severe respiratory problems particularly among

Choose an answer

Infants

Women

Young people

Old people

Vinyl acetylene combines with HCl to form:

Choose an answer

Polyacetylene

Benzene

Chloroprene

Divinyl acetylene

N-atom forms three covalent bonds, its electronic configuration is

Choose an answer

The molar boiling point constant is the ration of elevation in boiling point to :

Choose an answer

Molarity

Mole fraction of solvent

Mole fraction of solute.

Atomospheric pollutant is

Choose an answer

CO₂

CO

O₂

N₂

B-atom in BF₃has

Choose an answer

sp³hybridization

sp²hybridization

sp hybridization

no hybridization

Grignard reagent on reaction with a ketone forms

Choose an answer

Tertiary alcohol

Secondary alcohol

Primary alcohol

Carboxylic acid

Which behaves ass insulator for animals body?

Choose an answer

Carbohydrates

Protiens

Fats

skin

Which statement is not correct

Choose an answer

Enzymes catalyst a specific reaction

Enzymes show catalytic activity at a specific temperature

The catalytic activity of enzymes is stopped if optimum pH is changed

The catalytic activity is poisoned by a co-enzymes

Benzene is obtained from benzene sulphonic acid by treating with

Choose an answer

HCl

NaOH

H₂O

NaHCO₃

Reduction of alkyl halides give

Choose an answer

Alkanes

Alkenes

Ketones

Ether

Which of the following is a non-typical transition elements

Choose an answer

Cr

Mn

Zn

Fe

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