Which among the following is not a borane?

(a)

B₂H₆

(b)

B₃H₆

(c)

B₄H₁₀

(d)

none of these

On moving down the group 13, density ______

(a)

decreases

(b)

increases

(c)

First decreases then increases

(d)

remains same

Among the following the correct order of acidity is ________.

(a)

HClO₂ < HClO < HClO₃ < HClO₄

(b)

HClO₄ < HClO₂ < HClO < HClO₃

(c)

HClO₃ < HClO₄ < HClO₂ < HClO

(d)

HClO < HClO₂ < HClO₃ < HClO₄

Permanganate ion changes to ________ in acidic medium.

(a)

MnO₄²⁻

(b)

Mn²⁺

(c)

Mn³⁺

(d)

MnO₂

A complex in which the oxidation number of the metal is zero is_______.

(a)

K₄[Fe(CN)₆]

(b)

[Fe(CN)₃(NH₃)₃]

(c)

[Fe(CO)₅]

(d)

both (b) and (c)

IUPAC name of H₂[Ptcl₆] is _______.

(a)

Hexa chloridoplatinum (IV) acid

(b)

Hexa chloridoplatinum (IV) acid

(c)

Hexachloridoplatinic (IV) acid

(d)

Dihydrogenhexaehloro platinate (IV)

Amorphous solids can also be called _______.

(a)

pseudo solids

(b)

true solids

(c)

super cooled liquids

(d)

both (a) & (c)

For the reaction, 2NH₃ ⟶ N₂ + 3H₂, if \(\frac { -d[NH_{ 3 }] }{ dt } \) = k₁[NH₃], \(\frac { d[N_{ 2 }] }{ dt } =k_{ 2 }[NH_{ 3 }],\frac { d[{ H }_{ 2 }] }{ dt } \)= k₃[NH₃] then the relation between k₁, k₂ and k₃ is _________.

(a)

k₁ = k₂ = k₃

(b)

k₁ = 3k₂ = 2k₃

(c)

1.5k₁ = 3k₂ = k₃

(d)

2k₁ = k₂ = 3k₃

Activation energy of a reactant is reduced by ________.

(a)

increased temperature

(b)

reduced temperature

(c)

increased pressure

(d)

reduced pressure

pH of a saturated solution of Ca(OH)₂ is 9. The Solubility product (K_sp) of Ca(OH)₂ _______.

(a)

0.5 × 10^-15

(b)

0.25 × 10^-10

(c)

0.125 × 10^-15

(d)

0.5 × 10^-10

A solution which is resistant to changes of pH on addition of small amounts of an acid or a base is known as _______.

(a)

buffer solution

(b)

true solution

(c)

isohydric solutionideal solution

(d)

ideal solution

The Tyndall's effect associated with colloidal particles is due to _______.

(a)

presence of charge

(b)

scattering of light

(c)

absorption of light

(d)

reflection of light

Lucas test is used to distinguish 1⁰, 2⁰ and 3⁰ ______.

(a)

amines

(b)

nitro compound

(c)

alcohols

(d)

all the above

Assertion: p – N, N – dimethyl amino benzaldehyde undergoes benzoin condensation
Reason: The aldehydic (-CHO) group is meta directing.
Codes:
A) if both assertion and reason are true and reason is the correct explanation of assertion.
B) if both assertion and reason are true but reason is not the correct explanation of assertion.
C) assertion is true but reason is false
D) both assertion and reason are false

(a)

if both assertion and reason are true and reason is the correct explanation of assertion.

(b)

if both assertion and reason are true but reason is not the correct explanation of assertion.

(c)

assertion is true but reason is false

(d)

both assertion and reason are false

Acetic acid when heated with HI/P gives_______.

(a)

methane

(b)

ethane

(c)

propane

(d)

acetaldehyde

On hydrolysis nitro ethane gives

(a)

methyl amine and hydroxyl amine

(b)

acetic acid and methyl amine

(c)

acetic acid and hydroxyl amine

(d)

formic acid and hydroxyl amine

Which one of the following is not produced by body?

(a)

DNA

(b)

Enzymes

(c)

Hormones

(d)

Vitamins

An example of non-protein amino acid is

(a)

Alanine

(b)

orinithine

(c)

proline

(d)

serine

Pick the vitamin among the following acids?

(a)

Ascorbic acid

(b)

Acetic acid

(c)

Cinnamic acid

(d)

Aspartic acid

A mixture of D (+) glucose and D (-) fructose is known as__________.

(a)

cane sugar

(b)

sweetless sugar

(c)

invert sugar

(d)

starch sugar

Nucleic acid is made up of__________

(a)

an organicbase

(b)

a sugar unit

(c)

phosphoric acid

(d)

all of these

Primary structure of proteins refer to _________.

(a)

amino acid present

(b)

the shape of protein molecule

(c)

the peptide bond

(d)

the sequence of amino acid

The precipitation of protein is called_________

(a)

peptisation

(b)

denaturation

(c)

renaturation

(d)

none of these

The drug used in major surgical procedure is ________

(a)

procaine

(b)

lidocaine

(c)

propofol

(d)

morphine