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प्रश्न
When lithium metal is placed in hydrochloric acid, _______ gas is evolved.
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उत्तर
When lithium metal is placed in hydrochloric acid, Hydrogen gas is evolved.
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संबंधित प्रश्न
Write true or false :
Hydrogen sulphide has rotten egg smell .
Complete the statement by filling the gap using an appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
An ______ is drawn in between the reactants and products while writing the equation for a chemical reaction.
Select the correct answer for the following options:
The basic gas obtained when two gases react in presence of a catalyst and the reaction is exothermic.
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper nitrate to nitrogen dioxide
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Calcium hydroxide.
Photosynthesis is a chemical reaction that takes place in the presence of ______.
Arrange the following statements in correct sequence:
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- When you agitate the cloth, the dirt is surrounded by many molecules and taken away from the cloth.
- The dirt surrounded by the detergent molecules floats in the water making it dirty.
- Finally, the cloth is clean.
- The detergent molecules have two sides.
- Water hating goes and joins with dirt and oil in the cloth while the water-loving joins with the water molecules.
A chemical change may involve –
Give two examples for the following case:
Chemical changes
When carbon dioxide is passed through lime water ______.
