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Which of the following graphs are correct for the given reaction; $H_2\left(g\right)+C{O}_2\left(g\right)\rightleftharpoons H_{2}O\left(g\right)+CO\left(g\right)$

Assume initially only $H_2$ and $C{O}_2$ are present :

The radioactive halogen element is:

The shape of methyl carbanion is:

When electromagnetic radiation of wavelength 300 nm falls on the surface of sodium, electrons are emitted with a kinetic energy of $1.68\times {10}^{5}Jmo{l}^{-1}$. What is the minimum energy needed to remove an electron from sodium?

Between hydrogen fluoride and water:

Match the followings

$\begin{array}{cccc}& \text{List-I}& & \text{List-II}\\ \left(I\right)& Zn\left(s\right)+2HCl\left(aq\right)\to ZnC{l}_2\left(aq\right)+H_2\left(g\right)& \left(P\right)& 50\%\text{of excess reagent left}\\ & \text{Above reaction is carried out by taking}& & \\ & \text{2 moles each of}Zn\text{and}HCl& & \\ \left(II\right)& AgN{O}_3\left(aq\right)+HCl\left(aq\right)\to AgCl\left(s\right)+HN{O}_3\left(aq\right)& \left(Q\right)& \text{22.4 L of gas at STP is liberated}\\ & \text{Above reaction is carried out by taking}& & \\ & \text{170 g}AgN{O}_3\text{and 18.25 g}HCl(Ag=108)& & \\ \left(III\right)& CaC{O}_3\left(s\right)\to CaO\left(s\right)+C{O}_2\left(g\right)& \left(R\right)& \text{1 moles of solid (product) obtained}\\ & \text{100 g}CaC{O}_3\text{is decomposed}& & \\ \left(IV\right)& 2KCl{O}_3\left(s\right)\to 2KCl\left(s\right)+3O_2\left(g\right)& \left(S\right)& HCl\text{is the limiting reagent}\\ & \frac{2}{3}\text{moles of}KCl{O}_3\text{decomposed}& & \\ & & \left(T\right)& \text{11.2 L of gas at STP is liberated}\\ & & \left(U\right)& 75\%\text{of excess reagent left}\end{array}$

Balance the following redox reaction in basic medium:

$Cl{O}^{-}+Cr{O}_2^{-}\to C{l}^{-}+Cr{O}_4^{2-}$

The correct order of stability for the following species is:

Which of the following orders regarding the boiling points of the given alkyl chloride is correct?

The electrons, identified by quantum number n and l,

(i) n = 4, l = 1(ii) n = 4, l = 0(iii) n = 3, l = 2 and (iv) n = 3, l = 1

Can be placed in order of increasing energy, from lowest to highest as

Find the dissociation constant $K_a$ of a weak monobasic acid which is 3.5% dissociated in a $\frac{M}{10}$ solution at ${25}^{\circ }C$

The average distance travelled by the molecule between successive collision is called _____.

Strongest reducing agent is

A first order reaction is 50% complete in 20 minutes at $27{}^{\circ }C$ and in 5 minutes at $47{}^{\circ }C$. The energy of activation of the reaction is:

What volume of $C{O}_2$ at STP (atm) will be produced when $1\text{g}$ of $CaC{O}_3$ reacts with an excess of dilute $HCl$?

Calculate the percent dissociation of $H_{2}S\left(g\right)$ if 0.1 mol of $H_{2}S$ is kept in a 0.4 litre vessel at 1000 K. For the reaction,

$2H_{2}S\left(g\right)\rightleftharpoons 2H_2\left(g\right)+S_2\left(g\right)$ the value of $K_c$ is $1\times {10}^{-6}$.

Kinetic energy and pressure of a gas of unit volume are related as:

Consider the following species:

$C{N}^{+}$, $C{N}^{–}$, $NO$ and $CN$

Which one of these will have the highest bond order?

A catalyst will increase the rate of a chemical reaction by

Select the correct order of bond angle of the following species.

$Cl{O}_3^{-},Br{O}_3^{-},I{O}_3^{-}$

Select the correct sequence of increasing radius (left to right):

When 9.65 coulombs of electricity is passed through a solution of silver nitrate

(atomic weight of taking as 108) the amount of silver deposited is

[EAMCET 1992; KCET 2000]

Consider a redox reaction :



$xN{a}_{2}HAs{O}_3+yNaBr{O}_3+zHCl\to NaBr+H_{3}As{O}_4+NaCl$



where $x,y,z$ are the stoichiometric coefficients of $N{a}_{2}HAs{O}_3,NaBr{O}_3,HCl$ respectively.

The value of $x+y+z$ in the above balanced redox reaction is :

IUPAC name of the following compound is $C{H}_3-CH=CH-C\equiv H$?

The mobility of metal ions in an aqueous medium $(L{i}^{⨁},N{a}^{⨁},K^{⨁},R{b}^{⨁})$ in an electric field, follows the order:

Reaction in which, the yield of product(s) increases with an increase in pressure is:

Sort the following according to increasing order of the stability of carbocation.

$8g$ of $O_2$ has the same number of atoms as

Which of the following are formed on addition reaction of DCI with 3-methyl-1-butene

The structure of D-(+)-glucose is



The structure of L-$(-)$-glucose is

The solubility in water of a sparingly soluble salt $A{B}_2$ is $1.0\times {10}^{-5}mol{l}^{-1}$. Its

solubility product number will be

n-Propyl alcohol and isopropyl alcohol can be chemically distinguished by:

The molal elevation constant is the ratio of the elevation in B.P. to

The correct structure of 2,6-Dimethyl-dec-4-ene is:

The molecular formula of amine is C₄H₁₁N. Then ratio of 1⁰, 2⁰ and 3⁰ isomeric amines possible are (structural isomers only)

Consider a system consisting of one mole of an ideal diatomic gas in a container with piston. What is the temperature change of the gas, if q = 50.0 J and W = -100.0 J?

One mole of an ideal gas at $500K$ is expended isothermally from an initial volume of $1\text{litre}$ to $10\text{litre}$. The $\Delta E$ for this process is :

Match $List-I$ (Monomer) with $List-II$ (Polymer) and select the correct answer using the codes given below the lists:

$\begin{array}{cc}\text{List-I}& \text{List-II}\\ \left(I\right)\text{Hexamethylenediamine}& \text{A.Bakelite}\\ \left(II\right)\text{Phenol}& \text{B. Dacron}\\ \left(III\right)\text{Phthalic acid}& \text{C. Glyptal}\\ \left(IV\right)\text{Terephthalic acid}& \text{D. Melamine}\\ & \text{E. Nylon-6,6}\end{array}$

In hte following reaction

$2S{O}_2\left(g\right)+O_2\left(g\right)\rightleftharpoons 2S{O}_3\left(g\right)$

the equilibrium is not attained. The rate of forward reaction is greater than that of backward reaction. Thus, which of the following is the correct relation between $K_p$ and $Q_p$?

Which of the following order of radii is correct?

$S{F}_6$ and $PC{l}_5$ are exceptions to octet rule because of _____.