AIEEE 2011 PYQ Mock Test

Which of the following facts about the complex $[\text{Cr}({\text{NH}}_3{)}_6]{\text{Cl}}_3$ is wrong?

Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to $4\text{kg}$ of water to prevent it from freezing at $-6^{\circ }\text{C}$ will be: ($K_f$ for water $=1.86{\text{K kg mol}}^{-1}$, and molar mass of ethylene glycol $=62{\text{g mol}}^{-1}$)

Which one of the following orders represents the correct sequence of the increasing basic nature of the given oxides?

The rate of a chemical reaction doubles for every $10^{\circ }\text{C}$ rise of temperature. If the temperature is raised by $50^{\circ }\text{C}$, the rate of the reaction increases by about:

The magnetic moment (spin only) of $[{\text{NiCl}}_4{]}^{2-}$ is: