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प्रश्न
Indicate whether the following statement is true or false:
Molecules combine to form atoms
विकल्प
True
False
उत्तर
False
Correct Statement: Atoms combine to form a molecule.
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संबंधित प्रश्न
Write true or false
All pure substances have characteristic melting and boiling points.
Give Two Examples for Each of the Following: Inert Gases
Give two applications of chromatography.
Give one use of the following substance:
Iron
Match the Columns:
| Column A | Column B | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Complete the statement given below by filling in the blank with the correct word.
From the elements nitrogen, chlorine, bromine, the element present in the atmosphere is ________.
Write the names of elements from the following symbol:
Cu
Matter is its simplest form is called ______.
