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प्रश्न
Name the gases which turn moist red litmus blue.
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उत्तर
Basic gases (NH3)
संबंधित प्रश्न
Fill in the blank:
The substances formed as a result of a chemical reaction are called _______
State what you would observe when the following substance is heated in a glass test tube red lead.
Name the type of chemical reaction shown by the following equation:
2Mg + O2 → 2MgO
Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
To prevent rusting, a layer of ______ metal is applied on iron sheets.
Represent the addition of dilute sulphuric acid to zinc by means of a chemical equation. State the function of the arrow between the reactants and products.
The percentage composition of Nitrogen in Ureas is ______.
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
Can you change rust back into iron by some simple method?
A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
Are these changes chemical in nature?
When carbon dioxide is passed through lime water ______.
What is thermochemical reactions?
