Which of the following elements is a d-block element?
...Which of the following elements is a d-block element?
Calcium
lron
Lithium
Silicon
Correct answer is B
No explanation has been provided for this answer.
A noble gas with a high power of fog penetration used in aerodrome beacons is? ...
Which of the following factors does NOT affect the rate of a chemical reaction? ...
The metal used to recover copper from a solution of copper sulphate is ...
The oxidation state of chlorine in potassium chlorate is? ...
Which of the following compounds is covalent? ...
The pH of a solution obtained by mixing 100cm3 of a 0.2M solution of NaOH is?...
CuSO4 5H2O can be obtained from an aqueous solution of copper (ll) tetraoxosulphate (VI) by...
The following transition metal ions would be coloured in aqueous solution except________? ...
If humid air is polluted by chlorine discharged, the air can be restored by sprinkling ...