Question # 1

Which is the most toxic among the given?

Choose an answer

heavy metals

non-metals

Metals

Metalloids

An ideal gas expands according to PV=constant. On expansion, the temperature of gas

Choose an answer

will rise

will drop

cannot be determined because the exteral pressure is not known

will remain same

A crystal system in which the unit cell has different all cell lengths but all angles equal to 90° it is called as

Choose an answer

orthorhombic

triclinic

monoclinic

cubic

The starting substance for the preparation of iodoform is any of the following, except

Choose an answer

СН3СН(ОН)CН3

CH3CH2ОН

HCH2OH

CH3COCH3

The %age of nitrogen in urea is:

Choose an answer

46

60

70

80

CFCs destroy ozone layer, How many ozone molecule a chlorine free radical can destroy:

Choose an answer

50,000

100,00

20,000

10,000

A fat with 18 carbon & no double bond will be

Choose an answer

Solid

Liquids

Gel like

None

In which of the following compounds hydrogen bonding is not present

Choose an answer

water

ethanol

ether

ammonia

Which of the following has positive value of enthalpy

Choose an answer

Neutralisation

Atomization

combustion

All of the above

The boiling point of H2O is 100°C while that of C2H5-OH is 78.5C°. The reason is that:

Choose an answer

H2O molecules are small-sized

the bond angles at oxygen atom are different

C2H5-group is electron donating

the number of H-bonds are greater in H20, than C2H5-OH

Which one of the following elements is not present in all protens

Choose an answer

Carbon

Hydrogen

Nitrogen

Sulphur

Which of the following solutions has the highest boiling point ?

Choose an answer

5.85% solution of sodium chloride.

18.0% solution of glucose.

6.0% solution of urea.

All have same boiling points.

Vinyl acetylene combines with HCI to form

Choose an answer

Poly acetylene

Benzene

Chloroprene

Divinylacetylene

The percentage by weight of NaCl, if 6.0 g of NaCl is dissolved in 120 g of water is

Choose an answer

10.5 %

5%

8.02%

11.5%

Chemical composition of colemnite is:

Choose an answer

Ca₂B₆O₁₁.5H₂O

CaB₄O₇ .4 H₂O

Na₂B₇O₇. 4 H₂O

CaNaB₅O₉.8H₂O

Outer shells of two elements X and Y have two and six electrons respectively. If they combine, the expected formula of compound will be

Choose an answer

XY

X₂Y

X₂Y₃

XY₂

The metal present in blood is

Choose an answer

Al

Hg

Cu

Fe

How many mole of acidfied FeSO₄solution can be completely oxidized by one mole of KMNO₄?

Choose an answer

10

5

6

2

50 mL of 10 N H₂SO₄. 25mL of 12 N Hcl and 40 mL of 5N HNO₃are mixed and the volume of the mixture is made 100 mL by adding water. The normality of resulting will be

Choose an answer

1 N

2 N

3 N

9 N

Choose an answer

Who rejected the vital force theory

Choose an answer

Wholer

Fisher

Newton

Lewis

3 moles of ethanol react with one mole of phosphorus tribromide to from 3 moles of bromoethane and on mole of X. Which of the following is X?

Choose an answer

H₃PO₄

H₃PO₂

HPO₃

H₃PO₃

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