Question Text
Question 1 :
Breaking of lead bromide into lead and bromine is an example of _____.
Question 3 :
Exposure of silver bromide to sunlight for a long duration turns grey due to:
Question 4 :
$CaC{ O }_{ 3 }\xrightarrow { \quad \quad \Delta \quad \quad  } CaO+C{ O }_{ 2 }\uparrow $ is a ________ reaction.
Question 5 :
The activity of the metal barium is between that of sodium and potassium. It is likely that:
Question 7 :
In which of the following equations, the reduction of metal oxides can be seen  :<br/>
Question 8 :
The decomposition of mercuric oxide ($Hg)$) on heating, resulting in the formation of mercury and oxygen, is represented by the following chemical equation-<br/>$2HgO+180kJ\longrightarrow 2Hg+{O}_{2}$<br/>Which one of the following represents the heat of formation of mercuric oxide?
Question 9 :
On heating blue coloured powder of copper(II) nitrate in a boiling tube copper oxide (black), oxygen gas and a brown gas X is formed. Which type of reaction is this?<br/>