Question
Fe has higher melting point than Cu. Why?
✓
Answer
This is because Fe (3d6 4s1) has four unpaired electrons in 3d-subshell. While Cu (3d10 4s1) has only one electron in the 4s-subshell. Hence, metallic bonds in Fe are much stronger than those in Cu.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Give simple chemical tests to distinguish between the following pairs of compound.
Benzaldehyde and Acetophenone.
State the factors that influence the value of cell potential of the following cell:
Mg(s) | Mg2+(aq) || Ag+(aq) | Ag(s)
Mg(s) | Mg2+(aq) || Ag+(aq) | Ag(s)
Write the IUPAC name of the following compound:
Draw the structures of optical isomers of:
[PtCl2(en)2]2+
[PtCl2(en)2]2+
On the basis of lanthanoid contraction, explain the following:
Trends in the stability of oxo salts of lanthanoids from La to Lu.
Trends in the stability of oxo salts of lanthanoids from La to Lu.
Why must vitamin C be supplied regularly in diet?
Write structures of the products of the following reactions:
→$\text{CH}_3-\text{CH}=\text{CH}_2\ \xrightarrow{\text{H}_2 \text{O}/\text{H}^+}$
What is coulometer?
Write the formula for the following coordination compound:
Tris (ethane–1, 2–diamine) chromium (III) chloride.
Tris (ethane–1, 2–diamine) chromium (III) chloride.
Name the following halides according to IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides:
o-Br-C6H4CH(CH3)CH2CH3
o-Br-C6H4CH(CH3)CH2CH3