DEMOEXAM | ScoreExams

Question 1 of 10

The rate of a First order reaction 0.04 {tex}mol^{-1} S^{-1}{/tex} at 10 seconds 0.03 {tex}mol^{-1} s^{-1}{/tex} at 20 seconds after intiation of reaction. The half life period of the reaction is

A24.1s

B34.1s

C44.1s

D54.1s

Question 2 of 10

The name of the compound in figure is

A(2Z, 4Z)-2, 4-hexadiene

B(2Z, 4E)-2, 4-hexadiene

C(2E, 4Z)-2, 4-hexadiene

D(4E, 4Z)-2, 4-hexadiene

E(2E, 4E)-2, 4-hexadiene

Question 3 of 10

A flask was filled with {tex}CCl_4{/tex} vapours at a particular temperature and pressure. These vapours were then replaced by oxygen gas at the same temperature and pressure, the mass of {tex}CCl_4{/tex} vapours will be

Asame as that of {tex}O_2{/tex}

Bfive times heavier than that of {tex}O_2{/tex}

Ctwo times heavier than that of {tex}O_2{/tex}

Done fifth of that of {tex}O_2{/tex}

Question 4 of 10

Basic properties of {tex}TiO_2, ZrO_2{/tex} and {tex}HfO_2{/tex} are in the order:

A{tex}TiO_2 < ZrO_2 < HfO_2{/tex}

B{tex}ZrO_2 < HfO_2 < TiO_2{/tex}

C{tex}HfO_2 < TiO_2 < ZrO_2{/tex}

D{tex}TiO_2 < HfO_2 < ZrO_2{/tex}

Question 5 of 10

Which of the following has maximum number of lone pairs associated with Xe?

A{tex}XeF_4{/tex}

B{tex}XeF_6{/tex}

C{tex}XeF_2{/tex}

D{tex}XeO_3{/tex}

Question 6 of 10

A binary liquid solution is prepared by mixing n - heptane and ethanol. Which one of the following statement is correct regarding the behaviour of the solution?

AThe solution formed is an ideal solution

BThe solution is non-ideal showing +ve deviation from Raoult's law

CThe solution is non-ideal, showing -ve deviation from Raoult's law

Dn - heptane shows +ve deviation while ethanol shows -ve deviation from Raoult's law

Question 7 of 10

∫e^{3 log x} (x⁴+1)^-1 dx is equal to

Ae^{3 log x} + c

B1/4 log(x⁴+1)+c

Clog(x⁴+1)+c

D1/2 log(x⁴+1)+c

Ex⁴/(x⁴+1) + c

Question 8 of 10

The molecule having smallest bond angle is :

A{tex}NCl_3{/tex}

B{tex}AsCl_3{/tex}

C{tex}SbCl_3{/tex}

D{tex}PCl_3{/tex}

Question 9 of 10

Which of the following on thermal decomposition yields a basic as well as an acidic oxide?

A{tex}KClO_3{/tex}

B{tex}Na_2CO_3{/tex}

C{tex}NaNO_3{/tex}

D{tex}CaCO_3{/tex}

Question 10 of 10

Two finite sets have m and n elements respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The values of m and n respectively are

A7, 6

B6, 3

C5, 1

D7, 8

E3, 6