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प्रश्न
Write an answer to the following question in your own words.
Which elements (metals and non-metals), compounds and mixtures do we use in our day-to-day life?
उत्तर
Examples of mixtures we use in our daily life are- lemon and water, sugar and milk, salt and water, cereal and milk, cement, air, etc.
Examples of compounds we use in our daily life are- salt \[\ce{(NaCl)}\], sugar \[\ce{(C12H22O11)}\], baking powder \[\ce{(NaHCO3)}\], vinegar \[\ce{(CH3COOH)}\], ethanol, etc.
Examples of elements we use in our daily life are- aluminum, copper, iron, silver, gold, etc.
संबंधित प्रश्न
What are the different types of mixtures ?
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
State the number of atoms of CaCO3
Name: Three different forms of carbon
Name: Two substances used to make jewellery.
Fill in the blank
The most abundant element in the atmosphere is _______.
Indicate whether the following statement is true or false:
Noble gases are high reactive
Write the names of elements from the following symbol:
Fe
‘The modern periodic table consists of elements arranged according to their increasing atomic numbers’. With reference to elements with atomic numbers 1 to 20 only in the periodic table – differentiate them into – metallic elements, metalloids, non-metals & noble gases.
Classify the substances given in Fig. 2.2 into elements and compounds
