Name: a Liquid Metal

एक शब्द/वाक्यांश उत्तर

Mercury

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पाठ 3: Elements, Compounds and Mixtures - Exercise 3 (A) [पृष्ठ २४]

पाठ 3 Elements, Compounds and Mixtures
Exercise 3 (A) | Q 5.4 | पृष्ठ २४

Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.

Give three differences between metals and non-metals.

Tick (√) the correct alternative from the choice given for the following statement.
Atoms of different kinds combine to form molecules of

The important physical properties of substances are colour, odour, nature, density & solubility in water.

Name – a gas with a pungent, choking odour which is lighter than air

State what are radicals. Give the names of the radicals –

(a) NO₃
(b) OH
(c) SO₄
(d) CO₃

Give the name of the radical - OH

Explain the difference between Metals and non-metals.

State four differences between – elements, compounds and mixtures with suitable examples.

Select the correct answer from the choice given below to complete the sentence :

Dust in air is an example of _________ mixture.

Name the element which is used for making computer chips.