Question # 1

Palmitic acid & steanic acid are obtained from process of fats & oils:

Choose an answer

Reducing

Neutralization

Oxidation

Hydrolysis

General gas equation is combination of

Choose an answer

Boyle s law

Avogadro s law

Charles s law

All of these

Structure of CrO4(-2) is'

Choose an answer

triclinic

cubic

octahedral

tetrahedral

How many electrons have to be removed to ionize 1.0 x 10(-6) moles of Ne atoms to Ne+ ions in a neon advertising tube:

Choose an answer

6.02x10ê23/1.0x10ê-6

1.0x 10ê-6 x 6.02x 10ê23

1.0x10ê-6 x 6.02×10ê23/20.2

1.0x10ê-6 x 6.02x10ê23/9.65x10ê-1

The volume of a gas that is occupied by its one mole at S.T.P. is known as:

Choose an answer

atomic volume

molar volume

normal volume

total volume

In big/metropolitan cities, atmosphere is mostly polluted due to

Choose an answer

Radioactive fall out

Household waste

Pesticide residue

Automobile exhausts

Carboxylic acids can be prepared from:

Choose an answer

Oxidation of alkane

Oxidation of alcohols

Oxidation of aldehydes

All of these

A large hole in the ozone layer over antarctica region was discovered in:

Choose an answer

1960s

1970s

1980s

1990s

In which system hydrogen bonding is not present

Choose an answer

solution of ethanol in water

linking of helix in protein molecule

structure of ice

solution of NaCl in benzene

The high molecular weight materials which yield on hydrolysis the amino acids is called:

Choose an answer

Carbohydrates

Lipids

Fatty acids

Proteins

Carbon Monoxide is:

Choose an answer

colouriess

orderless

high toxic

All of these

strength of an acid can be determined by

Choose an answer

P^ka

P^kp

P^oH

P^kw

Identify the incorrect statement with respect to ozone

Choose an answer

Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen

Ozone is more reactive than diaoxygen

Ozone is diamagnetic whereas dioxygen is paramagnetic

Ozone protects the earth's inhabitants by absorbing gamma-radiations

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

Choose an answer

ZnO

Cr₂O₃

Pt

Ni

Which following derivative cannot be prepared directly from acetic acid?

Choose an answer

Acetamide

Acetyl chloride

Acetic anhdride

Ethyl acetate

When 6s orbital is complete then next electron goes to

Choose an answer

6p

6d

5d

4f

Which reaction sequence would be best to prepare 3-chloro-aniline from benzene?

Choose an answer

Chlorination, nitration, reducing

Nitration, chlorination, reducition

Nitration, reduction,chlorination

Nitration, reduction, acylation, chlorination, hydrolysis

Amino acids are bifunctional organic compounds what are the two function groups

Choose an answer

Carboxylic acid and alcohol

Alcohol and aldehyde

Carboxylic acids and ketone

Amino group and carboxylic acid

Ionic radius, in a period from left to right

Choose an answer

Increases

Decreases

Decreases then increases

Increases and decreases

Alcohols of low molecular weight are

Choose an answer

Soluble in water

Soluble in water on heating

Insoluble in water

Insoluble in all solvents

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

Choose an answer

Al

Cu

Fe

Mg

Ethanol is prepared in Pakistan form fermentation of:

Choose an answer

Starch

Sugar

Glucose

Molasses

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