Question # 1

Which one of the following organic acids is made form methanol?

Choose an answer

acetic acid

bothanic acid

formic acid

propanoic acid

Why a C- C bond breaks by uv light

Choose an answer

Cl is most electronegative

Cl is volatile

C - Cl bond energy is smaller than that of C - H bond energy

uv light provides energy which is sufficient to break C - Cl bond and not C - H bond

If pressure is increased from a 2 atm to 4 atm on a gas then its volume will decrease from:

Choose an answer

3L to 1L

4L to 2L

6L to 4L

8L to 2L

Enthalpy of formation of one mole of ionic compound form gaseous ion under standard condition is called

Choose an answer

Gibb's energy

Bond energy

Lattice energy

.Both aldehydes and ketones are planar to the neighborhoods of carbonyl (C-0) group. Which one of the following bonds is distorted towards the oxygen atoms?

Choose an answer

pi-bond of C and O

Sigma bond of C and O

Sigma bond of C and H

Sigma bond of C and C

What does no happen when an ideal gas is heated?

Choose an answer

an increase in the average energy of the gas particles

an expansion in the range of kinetic energies possessed by particles

an increase in the number of molecules with lower energies

a drop in the number of molecules with lower energies

An element that is not an essential par of proteins is

Choose an answer

O

N

H

S

The shielding effect of inner electron is responsible for

Choose an answer

Having no effect on ionization energy

Decreasing ionization energy

Increasing ionization energy

Increasing electronegativity

Which is not the condition for the formation of smog

Choose an answer

there must be sufficient NO gas

there must be sunlight to help photo chemical reactions to take place

air must be blowing swifty

there must be SO₂in the air

Which of the following formula is correct for density of any gas

Choose an answer

d = RT/PM

d = PM/RT

d = MT/PR

d = RM/PT

Newspapers can be recycled again and again by how many times

Choose an answer

5

2

4

3

In the manufacture of iron from haematitie,limestone is added to act as

Choose an answer

Flux

A reducing agent

Slag

An oxidizing agent

Choose an answer

Condensation

Dehydration

Dehydrogenation

Hydrogenation

Ethanol can be converted into ethanoic acid :

Choose an answer

Hydrogenation

Hydration

Oxidation

Fermentation

Tetrabromoethane on treatment with alcoholic zinc gives

Choose an answer

Ethylbromide

Ethane

Ethene

Ethyne

During the mechanism of aldol condensation a/an ______ is formed

Choose an answer

Oxide

Alkali

Alkoxide ion

None of these

Reaction of ethanes with KMnO₄gives:

Choose an answer

Ozonide

Glyoxal

Glycol

Oxalic acid

F₂, Cl₂, Br₂and l₂lie below SHE is the Electro chemical series that is why these

Choose an answer

Undergo reduction

Undergo oxidation

Liberate H₂gas with steam

None of these

Which of the following elements is not stable:

Choose an answer

Xe

Ar.

Kr.

Li.

Acyl halide is formed by reacting PCl₅with

Choose an answer

Alcohol

Ester

Amide

Both carboxylic acids as well as esters

Methanol is prepared from CO and H_{2 using catalyst:}

Choose an answer

ZnO

Cr₂O₃

Pt

Ni

An electrochemical cell is based upon

Choose an answer

Acid-base reaction

Redox reaction

Nuclear reaction

None of the above

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