Free CBSE Class 10 Science Worksheets

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Sample CBSE Class 10 Science Worksheet Questions

1.

What is catenation and why should carbon having that property and what do u mean by saturated and unsaturated compounds ?

1.

Carbon atom makes bond with other carbon atoms or molecules that ability of carbon is called catenation.

. This is the reason for the presence of the vast number of organic compounds in nature.

Compounds are in single bond is called saturated and compounds in double and in triple bond called unsaturated

2.

- These unsaturated hydrocarbons are molecules that contain at least one carbon-to- carbon double bond. With the chemical formula ...

2.

Inner Transition Elements are

1.

Actinides

2.

Lanthanides

3.

Rare earth elements

4.

All

3.

In modern Periodic table the elements are arranged in the order of

1.

Increasing Atomic weight

2.

Increasing atomic radii

3.

Increasing atomic number

4.

Number of valence electrons

4.

Strike out the false statement among the following /

1.

metals are good conductors of electricity.

2.

They form acidic oxides.

3.

Metals are good conductors of heat.

4.

All metals form positive ions.

5.

Which among the following halogen will have highest boiling point?

1.

F

2.

Cl

3.

Br

4.

I

5.

At

6.

Which p block elements are not representative elements ?

1.

I A

2.

IIIA

3.

VIIA

4.

VIIIA

7.

Choose the correct element with a complete 1s orbital and considered to be a noble element.

1.

Hydrogen

2.

Helium

3.

Lithium

4.

Neon

8.
Give two examples of unisexual flower plants.
9.
How is budding different from fission?
10.
Which are the two processes referred to as gametogenesis?

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