Question

Match the column I with column II and mark the appropriate choice.

	Column I		Column II
(A)	Mischmetal	(i)	Alloy of Cu and Sn
(B)	Ziegler catalyst	(ii)	Alloy of lanthanoid ,metals
(C)	Brass	(iii)	$TiC{l}_4+Al(C{H}_3{)}_3$
(D)	Bronze	(iv)	Alloy of Cu and Zn

• A. $\left(A\right)\to \left(i\right),\left(B\right)\to \left(iii\right),\left(C\right)\to \left(ii\right),\left(D\right)\to \left(iv\right)$
• B. $\left(A\right)\to \left(ii\right),\left(B\right)\to \left(iii\right),\left(C\right)\to \left(iv\right),\left(D\right)\to \left(i\right)$
• C. $\left(A\right)\to \left(iv\right),\left(B\right)\to \left(i\right),\left(C\right)\to \left(iii\right),\left(D\right)\to \left(ii\right)$
• D. $\left(A\right)\to \left(iii\right),\left(B\right)\to \left(ii\right),\left(C\right)\to \left(i\right),\left(D\right)\to \left(iv\right)$

Answer 1

The correct option is B $\left(A\right)\to \left(ii\right),\left(B\right)\to \left(iii\right),\left(C\right)\to \left(iv\right),\left(D\right)\to \left(i\right)$

A) Mischmetal is alloy of lanthanides such as $50$% $Ce$, $25$% $La$, $15$% $Nd$ and $10$% other rare earth metals and iron.

B) Ziegler catalyst (also known as Ziegler Natta Catalyst) formed from $TiC{l}_4+Al(C{H}_3{)}_3$.

C) Brass is formed from alloy of $Cu$ and $Zn$.

D) Bronze is formed from alloy of $Cu$ and $Sn$.