MHT CET 2018 Answer Key with Solutions

for Physics, Chemistry, Mathematics & Biology

MHT CET 2018 Physics Answer Key & Solution

A

$2 \pi \ cm/s$

B

$4 \pi \ cm/s$

C

$8 \pi \ cm/s$

D

$16 \pi \ cm/s$

A

$r^{\frac{1}{2}} \left(\pi\right)^{\frac{1}{2}} \left(3\right)^{\frac{1}{2}} $

B

$r. \left(\pi\right)^{\frac{1}{4}} \left(3\right)^{\frac{1}{4}} $

C

$r. \left(\pi\right)^{\frac{1}{2}} \left(3\right)^{\frac{1}{4}} $

D

$r^{\frac{1}{2}} \left(\pi\right)^{\frac{1}{3}} \left(3\right)^{\frac{1}{2}} $

A

$\frac{MR \omega}{4t}$

B

$\frac{MR \omega}{2t}$

C

$\frac{MR \omega}{t}$

D

$MR \omega t $

A

0.8 A

B

1.0 A

C

1.2 A

D

1.4 A

A

glancing angle

B

angle of incidence

C

angle of deviation

D

angle of refraction

A

$\frac{\alpha^{2} r^{2}}{v }$

B

$\frac{\alpha^{2} r}{v^2}$

C

$\frac{\alpha r^{2}}{v^{2} }$

D

$\frac{v^{2}}{\alpha r^{2}}$

A

resolving power remains constant

B

resolving power becomes zero

C

limit of resolution is decreased

D

limit of resolution is increased

A

amplitude remains constant but frequency changes

B

both amplitude and frequency do not change

C

both amplitude and frequency change

D

amplitude of the carrier wave changes according to information signal

A

is one in which width of depletion layer increases

B

is one in which potential barrier increases

C

acts as closed switch

D

acts as open switch

A

$\frac{2 \pi mv}{e} , 2\pi^{2} m \nu^{2} R^{2} $

B

$\frac{2 \pi^2 mv}{e^2} , 4 \pi^{2} m \nu^{2} R^{2} $

C

$\frac{ \pi mv}{e} , \pi^{2} m \nu^{2} R^{2} $

D

$\frac{2 \pi^2 m^2 v^2}{e} , 2\pi^{2} m^2 \nu^{2} R^{2} $

A

$\vec{A} = \vec{B} + \vec{C} $ and $A^2 = B^2 + C^2$

B

$\vec{A} = \vec{B} + \vec{C} $ and $B^2 = A^2 + C^2$

C

$\vec{B} = \vec{A} + \vec{C} $ and $B^2 = A^2 + C^2$

D

$\vec{B} = \vec{A} + \vec{C} $ and $A^2 = B^2 + C^2$

A

small, positive and small, positive

B

large, positive and small, negative

C

small, positive and small, negative

D

large, negative and large, positive

A

decreases

B

increases

C

becomes zero

D

first decreases and then increases.

A

independent of d

B

directly proportional to $\sqrt{d}$

C

directly proportional to d

D

directly proportional to $\frac{1}{\sqrt{d}}$

A

decreases while frequency increases

B

remains the same whereas frequency increases

C

increases and frequency also increases

D

decreases while frequency remains the same

A

$\frac{1}{2}$

B

$\left( \frac{1}{3} \right)^{rd}$

C

$\left( \frac{1}{4} \right)^{rd}$

D

$\left( \frac{1}{8.5} \right)^{rd}$

A

$\frac{u^{2} R}{2gR - u^{2}} $

B

$\frac{2 u^{2} R}{gR - u^{2}} $

C

$\frac{u^{2} R^2}{2gR^2 - u^{2}} $

D

$\frac{u^{2} R}{gR - u^{2}} $

A

large and large

B

large and small

C

short and large

D

short and small

A

$\frac{h}{2m \lambda}$

B

$\frac{h^2}{2m \lambda^2}$

C

$\frac{h^2}{2m^2 \lambda^2}$

D

$\frac{h^2}{2m^2 \lambda}$

MHT CET 2018 Chemistry Answer Key & Solution

A

$\ce{NO_{2(g)} }$ is intermediate

B

$\ce{NO_{(g)} }$ is intermediate

C

$\ce{NO_{(g)} }$ is catalyst

D

$\ce{O_{2(g)} }$ is intermediate

A

$\ce{\Delta U = q_p - P_{ex} . \Delta V }$

B

$\ce{q_v = \Delta U }$

C

$\ce{\Delta U = W }$

D

$\ce{W - q }$

A

Copper

B

Zinc

C

Nickel

D

Tin

A

$\ce{SP^2}$

B

$\ce{SP^3}$

C

$\ce{SP^3 d }$

D

$\ce{SP^3 d^2}$

A

Carbon

B

Zinc

C

Calcium

D

Sulphur

A

$\ce{ - COOH}$

B

$\ce{-CN}$

C

$\ce{-CH_3}$

D

$\ce{-NO_2}$

A

Polonium

B

Iron

C

Copper

D

Gold

A

Phosphinic acid $\ce{(H_3PO_2)}$

B

Orthophosphoric acid $\ce{(H_3PO_4)}$

C

Phosphonic acid $\ce{(H_3PO_3)}$

D

Pyrophosphoric acid $\ce{(H_4P_2 O_7)}$

A

u

B

A

C

M

D

n

A

$\ce{CH3CH2OH}$

B

$\ce{CH3CH2CH2OH}$

C

D

A

$4.1 \times 10^{-4} \ mol \ e^{-}$

B

$1.24 \times 10^{-2} \ mol \ e^{-}$

C

$2.487 \times 10^{-2} \ mol \ e^{-}$

D

$2.487 \times 10^{-1} \ mol \ e^{-}$

A

$\ce{2 \ mol \ dm^{-3}}$

B

$\ce{0.5 \ mol \ dm^{-3}}$

C

$\ce{0.125 \ mol \ dm^{-3}}$

D

$\ce{0.0005 \ mol \ dm^{-3}}$

A

$\ce{(CH3)3 CCOOH}$

B

$\ce{(CH3)2CHCOOH}$

C

$\ce{CH3CH2COOH}$

D

$\ce{(C2H5)2CHCOOH}$

A

The number of moles of solute present in 1 dm3 volume of solution

B

The number of moles of solute dissolved in 1 kg of solvent

C

The number of moles of solute dissolved in 1 kg of solution

D

The number of moles of solute dissolved in 100 dm3 volume of solution

A

Citric acid

B

Malonic acid

C

Succinic acid

D

Malic acid

A

nitrogen gas

B

ammonia

C

nitrous oxide

D

nitric oxide

A

$\ce{Pr (OH)_3 \ (Z = 59)}$

B

$\ce{Sm (OH)_3 \ (Z = 62)}$

C

$\ce{Ho (OH)_3 \ (Z = 67)}$

D

$\ce{La (OH)_3 \ (Z = 57)}$

A

$\ce{g \ cm^{-3}}$

B

$\ce{g \ m^{-3}}$

C

$\ce{kg \ m^{-3}}$

D

$\ce{kg \ cm^{-3}}$

A

$\ce{H_2} $ and $\ce{O_2}$

B

Steam

C

$\ce{H_3 O^{+}} $ and $\ce{OH^{-}}$

D

Hydrogen peroxide

A

Hoope’s process

B

Hall’s process

C

Mond’s process

D

Liquation process

A

Kolbe’s reaction

B

Reimer-Tiemann reaction

C

Stephen reaction

D

Etard reaction

A

$\ce{NaNH2 }$

B

$\ce{NH2NH2 }$

C

$\ce{ N_2}$

D

$\ce{NH4Cl }$

A

1.5 $gmL^{-1}$

B

1.2 $gmL^{-1}$

C

1.8 $gmL^{-1}$

D

2.0 $gmL^{-1}$

A

Thiokol

B

Kevlar

C

Nomex

D

Dynel

A

Aluminium

B

Titanium

C

Silicon

D

Nickel

A

Meprobamate

B

Equanil

C

Chlorodiazepoxide

D

Bromopheniramine

A

hydration

B

hydrolysis

C

hydrogenation

D

dehydrogenation

A

phosphorus

B

arsenic

C

antimony

D

bismuth

A

Sandmeyer reaction

B

Balz-Schiemann reaction

C

Gattermann reaction

D

Swarts reaction

A

$M_{2} = \frac{K_{b} . W_{2}}{\Delta T_{b}.W_{1}} $

B

$M_{2} = \frac{K_{b} . W_{1}}{\Delta T_{b}.W_{2}} $

C

$M_{2} = \frac{T_{b} . K_{b}}{W_{1}.W_{2}} $

D

$M_{2} = \frac{\Delta T_{b} . W_{1}}{K_{b}.W_{2}} $

A

Nitrogen

B

Phosphorus

C

Arsenic

D

Antimony

A

Ribulose

B

Ribose

C

Erythrose

D

Glyceraldehyde

A

$\ce{Ti^{3+} , Cu^{2+}}$

B

$\ce{Ti^{2+} , Cu^{2+}}$

C

$\ce{Ti^{4+} , Cu^{1+}}$

D

$\ce{Ti^{4+} , Cu^{2+}}$

A

Electrophilic substitution

B

Nucleophilic substitution

C

Electrophilic addition

D

Nucleophilic addition

A

$\ce{-NO_2}$

B

$\ce{-NH_2}$

C

$\ce{-CN}$

D

$\ce{-OH}$

A

Nylon-2-nylon-6

B

Dextron

C

PHBV

D

Buna-N

A

distorted tetrahedral

B

tetrahedral

C

trigonal planer

D

diagonal

A

Fluorine

B

Chlorine

C

Bromine

D

Iodine

A

$- E_a$

B

$-2.303 \ E_a/R$

C

$-E_a / 2.303 \ R$

D

$ - E_a / R$

MHT CET 2018 Mathematics Answer Key & Solution

A

3

B

4

C

$\frac{1}{3}$

D

$\frac{1}{4}$

A

$\sec \ x + \log | \sec \ x + \tan \ x| + c $

B

$\sec \ x . \tan \ x + c $

C

$\sec \ x + \log | \sec \ x - \tan \ x| + c $

D

$\sec \ x + \log | cosec \ x - \cot \ x| + c $

A

$\frac{x}{y}$

B

$- \frac{y}{x}$

C

$ - \frac{x}{y}$

D

$ \frac{y}{x}$

A

$\begin{bmatrix}4&2&3\\ -1&4&2\\ 1&2&1\end{bmatrix}$

B

$\begin{bmatrix} - 4&2&3\\ -1& -4&2\\ 1&2& -1\end{bmatrix}$

C

$\begin{bmatrix}-4&-1&1\\ 2&-4&2\\ 3&2&-1\end{bmatrix}$

D

$\begin{bmatrix}-1&-2&1\\ 4&-2&-3\\ 1&4&-2\end{bmatrix}$

A

$\frac{x + 3}{2} = \frac{y + 1}{3} = \frac{z -2}{2}$

B

$\frac{x - 3}{3} = \frac{y + 1}{2} = \frac{z -2}{2}$

C

$\frac{x - 3}{2} = \frac{y + 1}{3} = \frac{z -2}{2}$

D

$\frac{x - 3}{2} = \frac{y + 1}{2} = \frac{z -2}{3}$

A

$\frac{3}{20}$

B

$\frac{2}{5}$

C

$\frac{3}{28}$

D

$\frac{5}{23}$

A

$\frac{9}{8} \left(9^{10} - 1\right)$

B

$\frac{100}{9} \left(10^{9} - 1\right)$

C

$10^9 - 1 $

D

$\frac{100}{9} \left(10^{10} - 1\right)$

A

$\frac{9}{4}$

B

$\frac{19}{4}$

C

$\frac{3}{4}$

D

$\frac{13}{12}$

A

$e^x \ \tan \ x + c $

B

$e^x + \tan \ x + c $

C

$2e^x \ \tan \ x + c $

D

$e^x \ \tan \ 2x + c $

A

$\sqrt{3}$

B

$- \frac{1}{\sqrt{3}}$

C

$\frac{1}{\sqrt{3}}$

D

$- \sqrt{3}$

A

$\frac{2}{3}$

B

$\frac{5}{2}$

C

1

D

$\frac{3}{2}$

A

$8h^2 = 9ab$

B

$8h^2 = 9ab^2$

C

$8h = 9ab$

D

$8h = 9ab^2$

A

x + y + 2 = 0

B

- x + y + 2 = 0

C

x - y + 4 = 0

D

2x + y + 5 = 0

A

Hema gets above 95% marks but she does not get the admission in good college

B

Hema does not get above 95% marks and she gets admission in good college

C

If Hema does not get above 95% marks then she will not get the admission in good college.

D

Hema does not get above 95% marks or she gets the admission in good college.

A

(1, 0)

B

(0, 2)

C

$\left( - \frac{1}{2} , \frac{3}{2} \right)$

D

$\left( \frac{1}{2} , \frac{1}{2} \right)$

A

{1, 2, 3}

B

{1, 2, 3, 4}

C

{1, 2, 3, 4, 5, 6}

D

{1, 3, 5}

A

$\frac{16}{81}$

B

$\frac{65}{81}$

C

$\frac{23}{81}$

D

$\frac{58}{81}$

A

$\frac{\pi}{4} + \log \sqrt{2}$

B

$\frac{\pi}{4} - \log \sqrt{2}$

C

$1 + \log \sqrt{2}$

D

$ 1 - \frac{1}{2} - \log \ {2}$

A

-1

B

$\frac{1}{3}$

C

$\frac{1}{6}$

D

$\frac{1}{2}$

A

The weather is fine but my friends will not come or we do not go for a picnic

B

If my friends do not come or we do not go for picnic then weather will not be fine

C

If the weather is not fine then my friends will not come or we do not go for a picnic

D

The weather is not fine byt my friends will come and we go for a picnic

A

R

B

$( - \infty , - 1)$

C

$(1, \infty )$

D

$(-1 , 1)$

A

a tautology

B

a contradiction

C

equivalent to $p \wedge q$

D

equivalent to $p \vee q$

A

$x^2 + y^2 = a^2$

B

$x^2 + y^2 = a^2 + b^2 $

C

$x^2 + y^2 = a^2 - b^2 $

D

$\left(x -a\right)^{2}+ \left(y-b\right)^{2} = a^{2} + b^{2} $

A

$ - \frac{1}{e}$

B

$ - e $

C

$ \frac{1}{e}$

D

e

A

4

B

2.4

C

3.6

D

18.4

A

$\tan\left(\frac{x+y}{2}\right) = y +c $

B

$\tan\left(\frac{x+y}{2}\right) = x + c $

C

$\cot \left(\frac{x+y}{2}\right) = y + c $

D

$\cot \left(\frac{x+y}{2}\right) = x + c $

A

$\frac{9}{2}$

B

$\frac{1}{2}$

C

$\frac{5}{2}$

D

$\frac{7}{2}$

MHT CET Biology Answer Key & Solution 2018

MHT CET Biology Answer Key & Solution 2018 will be published soon

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