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Elevation in boiling point of a molar glucose solution given that d=1.2g/L

What is frangeld effect? Give examples

Lindemann proposed the following detailed mechanism for gas phase isomerization, the reaction is



In the above scheme, $A^{\ast }$ is a molecule that has enough vibrational energy to decompose or isomerise. The Lindemann mechanism is followed by most of gas phase decomposition or isomerization reaction.

For the overall unimolecular isomerization of cyclopropane to propylene at , the values of versus concentration is as follows.

$\underset{k_{unit}}{\left|M\right|}\underset{\frac{1}{137.5}}{\left|1M\right|}\underset{\frac{1}{131.25}{\text{in s}}^{-1}}{\left|2M\right|}$



As per Lindemann mechanism $k_{unit}$ is

The dimensions of $\sigma b^4$ ($\sigma$ = Stefan’s constant and b = Wien’s constant) are:

If A, B and C are the three hypothetical elements of Dobereiner's Triads and atomic mass of A and B are 7 and 15 respectively then the atomic mass of C is :

Question 26
$K_H$ value for Ar (g), $C{O}_2$ (g), HCHO (g) and $C{H}_4$ (g) are 40.39, 1.67, $1.83\times {10}^{-5}$ and 0.413 repectively.
Arrange these gases in the order of their increasing solubility.
(a) $HCHO<C{H}_4<C{O}_2<Ar$ (b) $HCHO<C{O}_2<C{H}_4<Ar$
(c) $Ar<C{O}_2<C{H}_4<HCHO$ (d) $Ar<C{H}_4<C{O}_2<HCHO$

Which of the following represent Z form?

Orthoboric acid behaves as weak monobasic acid in water giving $H_3{O}^{+}$ and

What are
nucleic acids? Mention their two important functions.

1. 20

Calculate Molality (in $M$) of a solution in which 36 gm glucose is dissolved in 500 gm water.

The molar conductivity of $0.007M$ acetic acid is $20Sc{m}^{2}mo{l}^{–1}$. What is the dissociation constant of acetic acid? Choose the correct option.



$[{\Lambda }_{H^{+}}^{\circ }=350Sc{m}^{2}mo{l}^{-1}{\Lambda }_{C{H}_{3}CO{O}^{-}}^{\circ }=50Sc{m}^{2}mo{l}^{-1}]$

The pH of a solution of $HN{O}_3$ is $3$. The molarity of solution is:

Number of triclinic crystal system among the following

Graphite, $ZnO$, $CdS$, $\left(PbC{O}_3\right)$, $HgS$ (cinnabar), $K_{2}C{r}_2{O}_7$, $CuS{O}_4.5H_{2}O$, $H_{3}B{O}_3$

Which of the following gives a compound, which is soluble in alkali with benzene sulphonyl chloride

Calculate the equivalent conductivity of $1M{H}_{2}S{O}_4$ solution if its conductivity is $26\times {10}^{-2}oh{m}^{-1}c{m}^{-1}$.



$(\text{Atomic weight of sulphur}=32g/mol)$

What is the final product of the given reaction sequence?

In reaction



$C_6{H}_{5}C{H}_3\underset{Oxidation}{⟶}A\underset{NaOH}{⟶}B\stackrel{Sodalime}{\to }C$



Then 'C' is

A sample of an ideal gas $\frac{\gamma }{1.5}$ is compressed adiabatically from a volume of 150 $c{m}^3$ to $50c{m}^3$. The initial pressure and the initial temperature are 150 K Pa and 300 K. Find

(a) The number of moles of the gas in the sample

(b) The molar heat capacity at caonstant volume

(c) The final pressure and tempereture

(d) The work done by the gas in the process and

(e) The changr in internal energy of the gas

If x g of solute having molar mass M g/mole present in y g of solution then molality of x in the solution would be

Water contained in a metallic water bottle is an example of:

After extracting the crude metal from its ore, what should be the next logical step?