Which one of following statements is not correct :

English

Gujarati

Hindi

General Principles and processes of Isolation of Elements

medium

Which one of the following statements is not correct :

A

Nickel forms $Ni(CO)_4$

B

All the transition metals form monometallic carbonyls

C

Carbonyls are formed by transition metals

D

Transition metals form complexes

Solution

The following statement is incorrect.

"All the transition metals form monometallic carbonyls"

There are metal carbonyls with two or more atoms of metals per molecule of metal carbonyl.

For example, $Mn _2( CO )_9$.

Standard 12

Chemistry

Share

Similar Questions

$XC{l_2}\,(excess)\,\, + \,\,YC{l_2}\, \to \,\,XC{l_4}\, + \,Y\,\, \downarrow \,\,;$

$YO\,\,\xrightarrow[{ > \,{{400}\,^o}}]{\Delta }\,\frac{1}{2}\,{O_2}\, + \,Y,$ Ore of $Y$ would be

medium

Which one of the following elements is most abundant in earth crust?

easy

A piece of steel is heated until redness and then plugged into cold water or oil. This treatment of iron makes it

medium

The beneficiation of the sulphide ores is usually done by

easy

Match the method of concentration of the ore in column $I$ with the ore in column $II$ and select the correct alternate :

$I$ $II$

$X$ magnetic separation.. $(a)$ $Ag_2S$

$Y$ froth floation $(b)$ $FeCr_2O_4$

$Z$ gravity separation $(c)$ $Al_2(SiO_3)_3$

medium