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In Carius method, $0.099gm$ organic compound gave $0.287gmAgCl$. The percentage of chlorine in the compound will be:

Question 9

Which of the following equation depicts reducing nature of $H_2{O}_2$

$\left(a\right)2\left[Fe\right(CN{)}_6{]}^{4-}+2H^{+}+H_2{O}_2\to 2\left[Fe\right(CN{)}_6{]}^{3-}]+2H_{2}O(b)I_2+H_2{O}_2+2O{H}^{-}\to 2I^{-}+2H_{2}O+O_2(c)M{n}^{2+}+H_2{O}_2\to M{n}^{4+}+2O{H}^{-}PbS+4H_2{O}_2\to PbS{O}_4+4H_{2}O$

Which one of the following compounds is an allylic halide?

illustrate how copper metal can give different products on reaction with $HN{O}_3$.

Why is allyl compound more reactive towards nucleophilic substitution than alkyl compounds?

Three moles of an ideal gas ($C_{V,m}=12.5J{K}^{-1}mo{l}^{-1}$) are at 300 K and 5 $d{m}^3$. If the gas is heated to 320 K and the volume changed to 10 $d{m}^3$, calculate the entropy change.

On the basis of crystal field theory explain why Co(III) forms paramagnetic octahedral complex with weak field ligands whereas it forms diamagnetic octahedral complex with strong field ligands.

Is there a nucleophile that's a cation? If yes how is it formed?

The relation between pressure exerted byan ideal gas $\left(p_{ideal}\right)$ and observed pressure $\left(p_{real}\right)$ is given by the equation,

$P_{ideal}=P_{real}+\frac{a{n}^2}{V^2}$

(i) If pressure is taken in $N{m}^{-2}$ , number of moles in mol and volume in $m^3$,calculate the unit of 'a'.

(ii) What will be unit of 'a' when pressure is in atmosphere and volume in$d{m}^3$?

Which of the following metal can not exhibit variable oxidation state

What is the mechanism of following reactions in the preparation of hydrogen:

Zn+2NaOH=Na₂ZnO₂ +H₂

2Al+2NaOH+2H₂O=2NaAlO₂ +3H₂

Sn+2NaOH+H₂O=Na₂ZnO₃+ 2H₂

The electron affinity values $\left(inkJmo{l}^{-1}\right)$ of three halogens x, y and z are respectively -349, -333 and -325. Then x, y and z are respectively

The equlibrium constant K, for the reaction $N_2+3H_2\rightleftharpoons 2N{H}_3$ is $1.64\times {10}_{4}atm$ at ${400}^{\circ }C$ . What will be the equilibrium constant at ${500}^{\circ }C$, if heat of reaction in this temperature range is - 105185.8 Joules.

A beam of light having wavelength distributed uniformly between 450 nm to 550 nm passes through a sample of hydrogen gas. Which wavelength will have the least intensity in the transmitted beam?

For the reaction, at ${1000}^{o}C$
$CaC{O}_3\left(s\right)\rightleftharpoons CaO\left(s\right)+C{O}_2\left(g\right)$
$△G^o=-24kJmo{l}^{-1},p_{C{O}_2}=0.0030atm$
Hence, $△G$ at this temperature is :

The dipole moment of $NaCl$ molecule is $8.5D$ and its bond length is $2\stackrel{o}{A}$. The percentage ionic character in this molecule will be:

Which of the following molecules has the highest bond angle?

Match List-I with List-II.
$$\begin{array}{cccc}& \text{List-I}& & \text{List-II}\\ \left(P\right)& Fe\left(N{O}_3{)}_3\right(aq)& \left(1\right)& \text{Only cationic hydrolysis}\\ \left(Q\right)& KCl{O}_4\left(aq\right)& \left(2\right)& \text{Only anionic hydrolysis}\\ \left(R\right)& RCOONa\left(aq\right)& \left(3\right)& \text{Both cationic as anionic hydrolysis}\\ \left(S\right)& N{H}_{4}CN\left(aq\right)& \left(4\right)& \text{No hydrolysis}\end{array}$$

For chromium number of electrons with magnetic quantum number is 12

True or false

AgBr shows both schottky and frenkel defect why?

In a hydrogen atom, if energy of an electron in the ground state is 13.6 eV, then that in the 2nd excited state is:

The orbital angular momentum for an electron revolving in an orbit is given by $\sqrt{1(1+1)}\frac{h}{2\pi }$. What is the orbital angular momentum of an s-electron?

When one mole of monoatomic ideal gas at temperature $T$ undergoes adiabatic change reversibly, change in volume is from $1Lto5L$, the final temperature in Kelvin would be:

The standard heat of combustion of solid boron is equal to

The correct order of the packing efficiency in different types of nuit cells is ............

(a) fcc < bcc < simple cubic (b) fcc > bcc > simple cubic

(c) fcc < bcc > simple cubic (d) fcc < bcc > simple cubic

Which conformer of butane (about $C-2$ and $C-3$) and ethylene glycol is the most stable respectively:

The following complexex are given:
(1) $trans-\left[Co\right(N{H}_3{)}_{4}C{l}_2{]}^{+}$
(2) $cis-\left[Co\right(N{H}_3{)}_2(en{)}_2{]}^{3+}$
(3) $trans-\left[Co\right(N{H}_3{)}_2(en{)}_2{]}^{3+}$
(4) $[NiC{l}_4{]}^{2-}$
(5) $[Ti{F}_6{]}^{2-}$
(6) $[Co{F}_6{]}^{3-}$
Choose the correct code:

Drugs like aspirin can be classified on the basis of:

The number of ions per mole of the complex [Co(NH₃)₆]Cl₃ in solution will be:

Describe the usefulness of water in biosphere and biological systems.

Predict the major product of the following reaction :
$C_6{H}_{5}COC{H}_3\stackrel{Se{O}_2}{\to }$ ___

Consider a reaction $A\to B+C$. If the initial concentration was reduced from 2M to 1M in 1 hr and from 1 M to 0.25 M in 2 hr, the order of the reaction is

Foam rubber is an example of which type of colloid?

The dispersion of one liquid in another liquid is called as:

In $I_3^{-}$, Lewis base is:

What is the freezing point of a 10% (by weight) solution of $C{H}_{3}OH$ in water?

$K_f=1.86Kkg/molal$

An OGIVE is used to determine

Experimentally it was found that a metal oxide has the formula $M_{0.98}O$. Metal M is present as $M^{2+}$ and $M^{3+}$ in its oxide. The fraction of the metal which exists as $M^{3+}$ would be: