Question
What are the common chemical properties of d-block elements?

Answer

The common chemical properties of the d-block elements are :
  • All d-block elements are electropositive metals.
  • They exhibit variable oxidation states and form coloured salts and complexes.
  • They are good reducing agents.
  • They form insoluble oxides and hydroxides.
  • Iron, cobalt, copper, molybdenum and zinc are biologically important metals.
  • They catalyse biological reactions.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Write the cell representation and calculate equilibrium constant for the following redox reaction:
$Ni _{( s )}+2 Ag ^{+}( aq )(1 M ) \rightarrow Ni ^{2+}( aq )(1 M )+2 Ag _{( s )}$
$ \text { at } 25^{\circ} C$
$ E _{ Ni }^0=-0.25 V \text { and } E _{ Ag }^0=0.799 V$
A voltaic cell consisting of $Fe ^{2+}{ }_{( aq )} \mid Fe _{( s )}$ and $Bi ^{3+}{ }_{( aq )} \mid Bi _{( s )}$ electrodes is constructed. When the circuit is closed, mass of Fe electrode decreases and that of $Bi$ electrode increases.
(a) Write cell formula, (b) Which electrode is cathode and which electrode is anode ? (c) Write electrode reactions and overall cell reaction.
What are intensive properties? Explain why density is intensive property.
Discuss industrial method of preparation of sulfur dioxide from zinc sulfide and iron pyrites.
In an experiment, $18.04 g$ of mannitol were dissolved in $100 g$ of water. The vapour pressure of water was lowered by $0.309 mm Hg$ from $17.535 mm Hg$. Calculate the molar mass of mannitol.
Explain neutralisation reaction according to Arrhenius theory.
Write reactions to bring about the following conversions.
Acetamide to Ethylamine
Explain prevention of waste or by products which is one of the principles of green chemistry.
$300 mmol$ of perfect gas occupies $13 dm ^3$ at $320 K$. Calculate the work done in joules when the gas expands :
(a) Isothermally against a constant external pressure of 0.20 bar,
(b) Isothermal and reversible process,
(c) Into vacuum until the volume of gas is increased by $3 dm ^3$. $\left(R=8.314 J mol ^{-1} K ^{-1}\right)$
What are the high-spin and low-spin complexes?