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What is the n-factor / valency factor of $H_{2}C{O}_3$ ?

Which one of the following sets of quantum numbers represents an impossible arrangment ?

Which of the following order is correct if we consider +I power?

Tertiary-alkyl secondary-Alkyl primary-alkyl

I II III

When a reaction is carried out in a closed vessel

Which one of the following can act as Bronsted acid as well as Bronsted base?

Which of the following sequence converts benzaldehyde into phenylacetaldehyde?

1: $PB{r}_3$
2: Mg in THF
3: $NaB{H}_{4}followedby{H}_3{O}^{+}$
4: $HCHOfollowedby{H}_3{O}^{+}$
5: PCC

Which of the following option(s) correspond to the properties mentioned?

The number of Faradays ($F$) required to produce $20g$ of calcium from molten $CaC{l}_2$ (Atomic mass of $Ca=40gmo{l}^{–1}$) is:

For the reaction 3$B{r}_2+6O{H}^{-}\to 5B{r}^{-}+Br{O}_3^{-}+3H_{2}O$
Equivalent weight of $B{r}_2$ is [M = mol wt of $B{r}_2$]

Which of the following is not true about enantiomer

Explain
the terms with suitable examples:

(i) Alcosol (ii) Aerosol (iii) Hydrosol

Benzyl chloride is reacted with different nucleophiles $(H{O}^{-},C{H}_{3}CO{O}^{-},Ph{O}^{-},C{H}_3{O}^{-}).$ Arrange them in the decreasing order of reactivity with Benzyl chloride.

what is an emulsion and how they are classify ?

0.15 mol of CO taken in a 2.5 L flask is maintained at 705 K along with a catalyst so that the following reaction takes place CO(g) + 2$H_2$(g) $\rightleftharpoons$ $C{H}_3$OH(g). Hydrogen is introduced until the total pressure of the system is 8.5 atm at equilibrium and 0.08 mol of methanol is formed. $K_p$ and $K_c$ respectively are:

The best reagent to prepare alkyl chlorides from alcohols is:

[0.77 Mark]

Identify the correct order of boiling points of the following compounds?

I) $C{H}_{3}C{H}_{2}C{H}_{2}C{H}_{2}OH$

II) $C{H}_{3}C{H}_{2}C{H}_{2}CHO$

III) $C{H}_{3}C{H}_{2}C{H}_{2}COOH$

The degeneracy of d orbital is removed with the approach of the ligand due to

Plots showing the variation of the rate constant (k) with temperature (T) are given below. The plot that follows the Arrhenius equation is

Which one is wrong if electrolysis of $C{H}_{3}COONa$ (aq) is made using Pt electrodes?

When $I^{-}$ is oxidized by $Mn{O}_4^{-}$ in faintly alkaline medium, $I^{-}$ is converted into

Which of the following is not a polymer?

Which of the following is the most reactive isomer toward nucleophilic addition reaction?

Calculate the free energy change when 1 mol of NaCl is dissolved in water at 298 K. given:

(i) Lattice energy of NaCl = -778 kJ $mo{l}^{-1}$

(ii) Hydration energy of NaCl = -778 kJ $mo{l}^{-1}$

(iii) Entropy change at 298 K = 43 J $mo{l}^{-1}$

In the preparation of alkane, a conc. aqueous solution of sodium or potassium salts of saturated carboxylic acid is subjected to

The resistance and conductivity of 0.02 M KCl solution are 82.4 ohm and $0.002768Sc{m}^{-1}$, respectively. When filled with $0.005N{K}_{2}S{O}_4$, the solution had a resistance of 324 ohm. Calculate conductivity of $K_{2}S{O}_4$ solution (conductance and cell constant calculated in previous problems are $3.086\times {10}^{(-3)}S$ and ​$0.228c{m}^{-1})$

On Freundlich adsorption isotherm $x$ is the mass of the gas adsorbed on mass $m$ of the adsorbent. The plot of $\log \left(\frac{x}{m}\right)$ vs $\log P$ is shown,



From the graph above, $\left(\frac{x}{m}\right)$ is proportional to:

$N{H}_{4}Cl$ crystallizes in a body-centered cubic lattice with edge length of unit cell equal to 387 pm. If the radius of the $C{l}^{-}$ ion is 181 pm, radius for $N{H}_4^{+}$ ion is

Which of the following is the correct structure of staggered newman projection of $C{H}_3-C{H}_3$?

Which of the following will show maximum power of +I effect?

Methane will be produced in which of the following reaction:

A gas expands adiabatically at constant pressure such that $T\propto V^{\frac{-1}{2}}$
The value of $\gamma \left(C_{p,m}/C_{v,m}\right)$ of the gas will be: