Advertisements
Advertisements
प्रश्न
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
उत्तर
When dilute sulphuric acid is poured on a copper plate, there will be evolution of hydrogen gas along with the formation of blue color crystals of coppersulphate.
Cu + H2SO4 → CuSO4 + H2
APPEARS IN
संबंधित प्रश्न
Fill in the following blanks with suitable words:
A metal having low melting point is ..................... but a non-metal having very high melting point is ..............
Name one ore of manganese. Which compound of manganese is present in this ore? Also write its chemical formula.
Name a metal which is not malleable :
Write name.
Alloy of sodium with mercury.
Write scientific reason.
Generally the ionic compounds have high melting points.
With reference to the following metals state their use in daily life metal:
Aluminium
Complete the following flowchart.
Metals are ______ conductors of heat and electricity.
Match the following
| i. | Silica | a. | Caustic potash |
| ii. | Potassium hydroxide | b. | Sand |
| iii. | Sodium hydroxide | c. | Calamine |
| iv. | Zinc carbonate | d. | Caustic soda |
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the metallic element.
