Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their

Compound $A, C_8H_{10}O$, is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell.
A and Y are respectively

Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :

Which one of the following ions exhibits d-d transition and paramagnetism as well?

Iron carbonyl, $Fe(CO)_5$ is

The type of isomerism shown by the complex $[CoCl_2(en)_2]$ is

The geometry and magnetic behaviour of the complex $[Ni(CO)_4]$ are

Following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :
a. $60 mL\dfrac{M}{10}HCL+40 mL\dfrac{M}{10} NaOH$
b. $55 mL\dfrac{M}{10}HCL+45 mL\dfrac{M}{10} NaOH$
c. $75 mL\dfrac{M}{5}HCL+25 mL\dfrac{M}{5} NaOH$
d. $100 mL\dfrac{M}{10}HCL+100 mL\dfrac{M}{10} NaOH$
pH of which one of them will be equal to 1?

On which of the following properties does the coagulating power of an ion depend?

Given van der Waals constant for $NH_3, H_2, O_2$ and $CO_2$ are respectively 4.17, 0.244, 1.36 and 3.59, which one of the following gases is most easily liquefied?