#### 11th Standard Chemistry English Medium Free Online Test Creative One Mark Questions with Answer Key

11th Standard

Reg.No. :
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Chemistry

Time : 00:10:00 Hrs
Total Marks : 10

10 x 1 = 10
1. The Kc for given reaction will be
$A_{ 2\left( g \right) }+2{ B }_{ \left( g \right) }\rightleftharpoons { C }_{ \left( g \right) }+2D_{ \left( g \right) }$

(a)

${ K }_{ C }=\cfrac { \left[ C \right] \left[ D \right] ^{ 2 } }{ \left[ { A }_{ 2 } \right] \left[ B \right] ^{ 2 } }$

(b)

${ K }_{ C }=\cfrac { \left[ C \right] }{ \left[ { A }_{ 2 } \right] \left[ B \right] ^{ 2 } }$

(c)

${ K }_{ C }=\cfrac { \left[ { A }_{ 2 } \right] \left[ B \right] ^{ 2 } }{ \left[ C \right] \left[ D \right] ^{ 2 } }$

(d)

${ K }_{ C }=\cfrac { \left[ { A }_{ 2 } \right] \left[ B \right] ^{ 2 } }{ \left[ C \right] }$

2. Which among the following molecule obeys octet rule?

(a)

NO

(b)

NO2

(c)

N2O3

(d)

ClO2

3. Which of the following sodium fusion extract of organic compound gives brilliant violet colour with sodium nitroprusside solution?

(a)

Urea

(b)

Thiourea

(c)

Benzoic acid

(d)

Aniline

4. Which of the following is heterolytic compound?

(a)

Pyrrole

(b)

Furan

(c)

Thiophene

(d)

All of these

(a)

Benzoyl peroxide

(b)

Benzyl alcohol

(c)

Benzyl acetate

(d)

Benzaldehyde.

6. Which one of the following shows three possible isomeric structures?

(a)

C4H10

(b)

C5H12

(c)

C6H12

(d)

C3H4

7. Statement - I: Alkenes are more reactive than alkanes.
Statement -II: Because of the presence of a double bond.

(a)

Statement -I and II are correct and statement - II is correct explanation of statement - I

(b)

Statement-I and II are correct but statement- II is not correct explanation of statement - I

(c)

Statement - I is correct but statement - II is wrong.

(d)

Statement - I is wrong but statement - II is correct.

8. Which one following mechanism will be followed when Tartiary butyl chloride is treated with alcoholic KOH?

(a)

SN1 mechanism

(b)

E1 mechanism

(c)

SN2 mechanism

(d)

E2 mechanism

9. Which one of the following compounds does not undergo nucleophilic substitution reactions at all?

(a)

Ethyl bromide

(b)

Vinyl chloride

(c)

Benzyl chloride

(d)

Isopropyl chloride

10. Most common and commercial water pollutant is

(a)

industrial waste

(b)

fertilizers

(c)

detergents

(d)

PCB's