The aqueous solutions of sodium formate, anilinium chloride and potassium cyanide are respectively _______.

(a)

acidic, acidic, basic

(b)

basic, acidic, basic

(c)

basic, neutral, basic

(d)

none of these

With regard to the strength of acids and bases, Find the incorrect statement among the following.

(a)

Strong acid is one that completely dissociates in water

(b)

K_a is the dissociation constant

(c)

CH₃COOH is a weak acid

(d)

Smaller the K_a value, greater is the acid strength

The conjugate base of NH^-₂ is _______.

(a)

NH^-

(b)

NH₃

(c)

NH⁺₃

(d)

NH^2-

How many faradays of electricity are required for the following reaction to occur MnO₄^-→ Mn²⁺

(a)

5F

(b)

3F

(c)

1F

(d)

7F

Using the data given below fmd out the strongest reducing agent ______.
\({ E }_{ { Cr }_{ 2 }{ O }_{ 7 }^{ 2- } }^{ o }{ Cr }^{ 3+ }=1.33V{ ,E }_{ { Cl }_{ 2 }{ / }{ Cl }^{ - } }^{ o }=1.36V\)
\({ E }_{ { Mn }O_{ 4 }^{ - } }^{ 0 }/{ Mn }^{ 2+ }=1.51V,{ E }_{ { Cr }^{ 3+ }/Cr }^{ o }=-0.74V\)

(a)

Cr

(b)

Cr³⁺

(c)

Cl^-

(d)

Mn²⁺

Statement : To stop bleeding from an injury, ferric chloride can be applied. Which comment about the statement is justified?

(a)

It is not true, ferric chloride is a poison.

(b)

It is true, Fe³⁺ ions coagulate blood which is a negatively charged sol

(c)

It is not true; ferric chloride is ionic and gets into the blood stream.

(d)

It is true, coagulation takes place because of formation of negatively charged sol with Cl^-.

Auto catalysis is observed in the reaction given below.
CH₃COOC₂H₅+H₂O➝ CH₃COOH+C₂H₅OH

(a)

CH₃COOC₂H₅

(b)

H₂O

(c)

CH₃COOH

(d)

C₂H₅OH

Silica gel is utilised for the ________of the number of gases.

(a)

adsorption

(b)

absorption

(c)

desorption

(d)

all of these

In the reaction sequence, Ethane \(\overset { HOCl }{ \longrightarrow } A\overset { x }{ \longrightarrow } \) ethan -1, 2 - diol. A and X respectively are ________.

(a)

Chloroethane and NaOH

(b)

ethanol and H₂SO₄

(c)

2 – chloroethan -1-ol and NaHCO₃

(d)

ethanol and H₂O

Which among the following sets of reactants will produce anisole?

(a)

HCHO, RMgX

(b)

(c)

C₆H₅ONa, CH₃Br

(d)

C₆H₅CH₃, CH₃CoCI

The general formula for aliphatic ether is ________.

(a)

C_nH_2n+2O

(b)

C_nH_2nO

(c)

C_nH_2n-2O

(d)

C_2nH_2n+1O

Phenol is used to manufacture _________.

(a)

plastics and drugs

(b)

explosives and pesticides

(c)

antiseptics and germicides

(d)

all the above

Benzoic acid \(\overset { i){ NH }_{ 3 } }{ \underset { ii)\Delta }{ \longrightarrow } } A\overset { NaOBr }{ \longrightarrow } B\overset { NaN{ O }_{ 2 }/HCl }{ \longrightarrow } \) C 'C'  is ______.

(a)

anilinium chloride

(b)

O – nitro aniline

(c)

benzene diazonium chloride

(d)

m– nitro benzoic acid

In Friedel Craft's reaction of benzoylation of benzene, which of the following acts as a electrophile?

(a)

CHCO⁺

(b)

CHO^-

(c)

CH₃CO⁺

(d)

CH₃CO^-

The organic compound whose balling point is 452K and has the smell of bitter almond is _________.

(a)

HCHO

(b)

CH₃CHO

(c)

C₆H₅CHO

(d)

C₆H₅CH₂CHO

Which of the following reaction is not correct.

(a)

CH₃ CH₂ NH₂ \(\overset { { HNO }_{ 2 } }{ \longrightarrow } \)CH₃CH₂ OH + N₂ 

(b)

(c)

CH₂ CONH₂ \(\overset { { Br }_{ 2 }/NaOH }{ \longrightarrow } \)CH₃ NH₂

(d)

none of these

C₆H₅NH₂ \(\underrightarrow { { NANO }_{ 2 }/HCl } \)  X Identify X.

(a)

C₆H₅CI

(b)

C₆H₅NHOH

(c)

C₆H₅N₂CI

(d)

C₆H₅OH

Which one of the following is not produced by body?

(a)

DNA

(b)

Enzymes

(c)

Hormones

(d)

Vitamins

Raffinose on hydrolysis gives

(a)

two monosaccharides

(b)

three monosaccharides

(c)

one disaccharide and one monosaccharide

(d)

two monosaccharides and one disaccharide

Starch contains 20% of _________and 80% of______.

(a)

ribulose, amylose

(b)

mylopectin, amylose

(c)

amylose, amylopectin

(d)

amylopectin, ribulose

The number of optical isomers depend on________.

(a)

number of chiral carbon

(b)

number of carbon present

(c)

number of oxygen present

(d)

both (b) and (c)

Ribose is_________

(a)

Ketopentose

(b)

Ketotetrose

(c)

Aldotriose

(d)

Aldopentose

In acidic solution an amino acid, when placed in an electric field__________

(a)

moves towards cathode

(b)

moves towards the anode

(c)

dissociates to cation and anion

(d)

does not move either towards the cathode or anode

Which one of the following structures represents nylon 6,6 polymer?

(a)

(b)

(c)

(d)

Aspirin is _______

(a)

benzoyl salicylic acid

(b)

acetyl salicylic acid

(c)

methyl salicylic

(d)

both (b) and (c)