Chemistry

Match the following drugs with their therapeutic actions:

For the reaction $2\mathrm{A}+3\mathrm{B}+\frac{3}{2}\mathrm{C}\to 3\mathrm{P}$   , which statement is correct?

Consider the following molecules and statements related to them:

(a) (B) is more likely to be crystalline

(b) (B) has higher boiling point than (A)

(c) (B) dissolves more readily than $\left(A\right)$  in water

Identify the correct option from below:

Three isomers $A,B$  and $C$ (mol. formula $C_8{H}_{11}N$  ) give the following results:

Among the statements (I-IV), the correct ones are:

(I) Be has smaller atomic radius compared to $\mathrm{M}\mathrm{g}$   .

(II) Be has higher ionization enthalpy than Al.

(III) Charge/radius ratio of $\mathrm{B}\mathrm{e}$ is greater than that of $\mathrm{A}\mathrm{l}$ .

(IV) Both Be and Al form mainly covalent compounds.

A mixture of one mole each of ${\mathrm{H}}_2,\mathrm{H}\mathrm{e}$  and ${\mathrm{O}}_2$ each are enclosed in a cylinder of volume $V$  at temperature $T$ . If the partial pressure of ${\mathrm{H}}_2$  is $2\mathrm{a}\mathrm{t}\mathrm{m}$ , the total pressure of the gases in the cylinder is:

Complex $A$ has a composition of ${\mathrm{H}}_{12}{\mathrm{O}}_6{\mathrm{C}\mathrm{l}}_3\mathrm{C}\mathrm{r}$ . If the complex on treatment with conc.   ${\mathrm{H}}_2{\mathrm{S}\mathrm{O}}_4$ loses  $13.5\mathrm{\%}$ of its original mass, the correct molecular formula of   $\mathrm{A}$ is:

[Given : atomic mass of $\mathrm{C}\mathrm{r}=52\mathrm{a}\mathrm{m}\mathrm{u}$ $\mathrm{A}$ and   $\mathrm{C}\mathrm{l}=35\mathrm{a}\mathrm{m}\mathrm{u}$ ]

The incorrect statement(s) among (a) - (d) regarding acid rain is (are):

(a) It can corrode water pipes.

(b) It can damage structures made up of stone.

(c) It cannot cause respiratory ailments in animals

(d) It is not harmful for trees

$100\mathrm{m}\mathrm{L}$ of $0.1\mathrm{M}\mathrm{H}\mathrm{C}\mathrm{l}$  is taken in a beaker and to it $100\mathrm{m}\mathrm{L}$ of $0.1\mathrm{M}\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}$  is added in steps of $2\mathrm{m}\mathrm{L}$ and the $\mathrm{p}\mathrm{H}$ is continuously measured. Which of the following graphs correctly depicts the change in  $\mathrm{p}\mathrm{H}$ ?

The strengths of 5.6 volume hydrogen peroxide (of density $1\mathrm{g}/\mathrm{m}\mathrm{L}$ ) in terms of mass percentage and molarity $\left(M\right)$ , respectively, are:

(Take molar mass of hydrogen peroxide as $34\mathrm{g}/\mathrm{m}\mathrm{o}\mathrm{l}$  )