Answer is:
Solution in test tube becomes green and lime water turns milky
Explanation:
Na2SO3 with dil. H2SO4 produces SO2 gas which turns K2Cr2O7 green and lime water milky.
Answer is:
The paramagnetic character in 3d series elements increases from scandium to copper
Explanation:
Paramagnetic character increases from Sc to Mn, then decreases from Fe to Zn.
Answer is:
7 to 2
Answer is:
In the highest oxidation states, the transition metals show basic character and form cationic complexes
Explanation:
When the transition metals are in their highest oxidation state, they no longer have tendency to give away electrons, thus they are not basic, but show acidic character and form anionic complexes.