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प्रश्न
Complete the statement with the correct words.
Acid’s are chemicals which are _____ in taste and derived from plants and ________.
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उत्तर
Acids are chemicals which are sour in taste and derived from plants and minerals.
संबंधित प्रश्न
Give two applications of chromatography.
Name: Three different forms of carbon
Fill in the blank
_________ refers to the number of atoms in the molecule of an element
Indicate whether the following statement is true or false:
Elements are made up of compounds
Indicate whether the following statement is true or false:
Noble gases are high reactive
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
Write the names of elements from the following symbol:
Xe
State four differences between – elements, compounds and mixtures with suitable examples.
What are elements? What are they made of?
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
