One of the constituent of german silver is
$Ag$
$Cu$
$Mg$
$Al$
To obtain steel entirely free from sulphur and phosphorus, the process used is
Which of the following has lowest percentage of carbon
Which of the following compound is coloured ?
In making gun-berrel, the steel used is
The correct order of decreasing second ionisation enthalpy of $Ti(22), V(23), Cr(24)$ and $Mn(25)$ is