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प्रश्न
Fill in the blanks:
Metals react with acids to produce _________ gas.
उत्तर
Metals react with acids to produce hydrogen gas.
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संबंधित प्रश्न
Mark ‘T’ if the statement is true and ‘F’ if it is false.
Generally, non-metals react with acids. ( )
Give reasons for the following.
Sodium and potassium are stored in kerosene.
The atomic number of an element Y is 16.
(a) What must an atom of Y do to achieve the nearest inert gas electron arrangement?
(b) Which inert gas is nearest to Y?
Name one ore of manganese. Which compound of manganese is present in this ore? Also write its chemical formula.
How does the electrical conductivity of copper alloys, brass and bronze, differ from that of pure copper?
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
Salt of silver, such as ________ is used for making photographic films.
Give a reason why a green deposit is seen on the surface of an article of copper
Name the following:
A metal used in flexible pipes.
Write scientific reason.
Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.
Complete the following flow chart.
