Chlorides of two metals are common laboratory chemicals and both are colourless.
Chlorides of two metals are common laboratory chemicals and both are colourless.
One of the metals reacts vigorously with water while the other reacts slowly. Place the two metals in the appropriate block in the periodic table. Justify your answer.
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i. Metals are present in all the four blocks of the periodic table.
ii. Salts of metals in the f-block and p-block (except AlCl3) are not common laboratory chemicals. Therefore, the choice is between sand d-block.
iii. From the given properties their placement is done as shown below:
- s-block: Metal that reacts vigorously with water.
- d-block: Metal that reacts slowly with water.
iv. The colourless nature of the less reactive metal in the d-block implies that the inner d subshell is completely filled.
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