IIT-JEE, AIEEE, AIPMT Some Basic Concepts of Chemistry-Paper-2 Online Test

Which one of the following is not an element
Diamond
Graphite
Silica
Ozone

Distillation
Crystallization
Sublimation
Adding aceitic acid
A mixture of methyl alcohol and acetone can be separated by
Distillation
Fractional distillation
Steam distillation
Distillation under reduced pressure
Mixture of sand and sulphur may best be separated by
Fractional crystallisation from aqueous solution
Magnetic method
Fractional distillation
Which of the following pairs of substances illustrate the law of multiple proportions
CO and CO2
1.0 g of an oxide of A contained 0.5 g of A. 4.0 g of another oxide of A contained 1.6 g of A. The data indicate the law of
Reciprocal proportions
Constant proportions
Conservation of energy
Multiple proportions
Among the following pairs of compounds, the one that illustrates the law of multiple proportions is
Irrespective of the source, pure sample of water always yields 88.89% mass of oxygen and 11.11% mass of hydrogen. This is explained by the law of
Conservation of mass
Constant composition
Multiple proportions
Constant volume

Constant proportions
Conservation of mass
Multiple proportions
Reciprocal proportions
Two samples of lead oxide were separately reduced to metallic lead by heating in a current of hydrogen. The weight of lead from one oxide was half the weight of lead obtained from the other oxide. The data illustrates
Law of reciprocal proportions
Law of constant proportions
Law of multiple proportions
Law of equivalent proportions
The law of multiple proportions was proposed by
Lavoisier
Dalton
Proust
Gay-Lussac
Chemical equation is balanced according to the law of
Multiple proportion
Reciprocal proportion
Conservation of mass
Definite proportions

Law of constant composition
Law of multiple proportions
Law of reciprocal proportions
Gay-Lussac’s law of gaseous volumes
Avogadro number is
Number of atoms one gram of element
Number of millilitres which one mole of a gaseous substances occupies at NTP
Number of molecules present in one gram molecular mass of a substance
All of these
Which property of an element is always a whole number
Atomic weight
Equivalent weight
Atomic number
Atomic volume
Description:

Some Basic Concepts of Chemistry - Test 2

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IIT JEE  AIEEE  AIPMT  AFMC  CBSE  CET

Discussion

Kalaivani

OZONE IS NOT AN ELEMENT PLS CLARIFY IT

1911 days 7 hours 45 minutes ago

Aniket Sen

SILICA IS NOT AN ELEMENT.. BUT EVEN OZONE IS NOT AN ELEMENT..........

2203 days 15 hours 17 minutes ago

Aniket Sen

!!!!!

2203 days 15 hours 18 minutes ago

Aniket Sen

NOT AT ALL UP TO THE MARK QUESTIONS

2203 days 15 hours 18 minutes ago

Jayesh

Ozone is an element??nt possible...plz clearify it

2299 days 8 hours 35 minutes ago

vivek

it is wonderful opportunity to gain knowledge and showing potential

3667 days 4 hours 50 minutes ago

srinithya

its seems to be very easy

3675 days 15 hours 8 minutes ago

bandana panda

ozone is nt an element.

3704 days 14 hours 33 minutes ago

praveen

it is a easy test

3723 days 2 hours 27 minutes ago

Nilakshi Karunaratne

I'm quite sure that ozone is not an element.

3737 days 6 hours 45 minutes ago

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