EASY

Earn 100

Which is an example of matter according to physical state at room temperature and pressure.

72.73% studentsanswered this correctly

Important Questions on Some Basic Concepts of Chemistry

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

The correct order of the metallic character of the elements

Be, Al, Na, K

MEDIUM

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

An organic compound contains

60 % C; 4.48 % H

and

35.5 % O .

Its empirical formula is

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Which of the following represents the correct order of metallic character of the given elements?

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Which among the following elements is a metalloid?

MEDIUM

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

At $600 K$ , the root mean square $(rms)$ speed of gas $X$ (molar mass $= 40$ ) is equal to the most probable speed of gas $Y$ at $90 K$ . The molar mass of the gas $Y$ is _____ $g {mol}^{- 1}$ . (Nearest integer)

MEDIUM

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Urea is produced by metabolism of _____.

HARD

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

{Cl}^{-}

is not isoelectronic with

MEDIUM

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

A compound is formed by two elements

X

and

Y

. Atoms of element

Y

form hexagonal close packing (hcp) lattice and those of the elements

X

occupy

(2 / 3)^{rd}

of tetrahedral voids. The formula of the compound formed by the elements

X

and

Y

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Which is the form of energy that does NOT occur while riding a bicycle?

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

A bottle containing two immiscible liquids is given to you. They may be separated by using a

MEDIUM

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Explain the term interconversion of matter with ice as a starting material.

State the term which refers to the conversion of a substance on heating from:

a] solid state to a liquid state.

b] liquid state to vapour state.

c] vapour state to liquid state.

d] liquid state to solid state.

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

What is the physical state of water at

12^{o}

HARD

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

A block of ice at

- 10 ° C

slowly heated and converted to steam at

100 ° C

. Which of the following curves represents this phenomenon qualitatively?

MEDIUM

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Can you think of a solid which takes the shape of the container it is kept in? (Think of ground spices such as salt in the kitchen.)

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Matter is anything which occupies . . .

A

. . . and has . . .

B

. . . .

Here

A

and

B

are

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Give reason for the following.

Solids have no definite shape or volume.

NOTE: This question given in the book seems to have an error and the modified question should be given as below.

Gases have no definite shape or volume.

MEDIUM

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

How will you prepare (i) a mixture and (ii) a compound, using iron filings and sulphur. Can you just by seeing, judge that the mixture formed is a homogeneous and heterogeneous mixture?

MEDIUM

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Discuss the three states of matter solid, liquids and gas on the basis of molecular model.

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

The solid like conducting state of gases with free electrons is called

EASY

Chemistry>Physical Chemistry>Some Basic Concepts of Chemistry>Nature of Matter

Matter is anything which occupies _____ (A) and has _____(B).

Identify A and B from the following.

Which is an example of matter according to physical state at room temperature and pressure.

Important Questions on Some Basic Concepts of Chemistry

Learn and Prepare for any exam you want !

Which is an example of matter according to physical state at room temperature and pressure.