Give Two Examples for the Following: Metals

Give two examples for the following: Metals

One Line Answer

Iron, silver, gold.

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Chapter 3 Elements, Compounds and Mixtures
Exercise 3 (A) | Q 2.1 | Page 24

Differentiate between the following.

Filter Paper and Alum

Differentiate between:

Homogenous and heterogenous substances

Select the correct answer from the choice given below.
The negatively charged particles in an atom

Write the names of elements from the following symbol:

Xe

Write the names of elements from the following symbol:

Fe

With reference to elements – define the term ‘molecule’. Give two examples each of a monoatomic, diatomic & polyatomic molecule.

Differentiate between homogenous & heterogeneous mixtures.

Select the correct answer from A, B, C, D & E for the statement given below :

A diatomic molecule.

The diagram represents fractional distillation for the separation of mixtures. Answer the following :

Can two immiscible liquids be separated by this process?
Separation of liquids by this process is based on which physical property?
If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
Give a reason for the above answer.
State the purpose of the fractionating column in the apparatus.

Elements : Combine to form compounds :: Compounds : ______.