The K_c 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)

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

Which among the following molecule obeys octet rule?

(a)

NO

(b)

NO₂

(c)

N₂O₃

(d)

ClO₂

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

Which of the following is heterolytic compound?

(a)

Pyrrole

(b)

Furan

(c)

Thiophene

(d)

All of these

Which one of the following is an example for free radical initiators ?

(a)

Benzoyl peroxide

(b)

Benzyl alcohol

(c)

Benzyl acetate

(d)

Benzaldehyde.

Which one of the following shows three possible isomeric structures?

(a)

C₄H₁₀

(b)

C₅H₁₂

(c)

C₆H₁₂

(d)

C₃H₄

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.

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

(a)

S_N1 mechanism

(b)

E₁ mechanism

(c)

SN₂ mechanism

(d)

E₂ mechanism

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

Most common and commercial water pollutant is _____________

(a)

industrial waste

(b)

fertilizers

(c)

detergents

(d)

PCB's