MDCAT Mock Test 12 - Online MCQ Exam

The following reaction is used for the preparation of oxygen gas in the laboratory: Which of the following statement about the reaction is correct?

1 Mark(s)

Your Answer:

A) It is a decomposition reaction and endothermic in nature.
B) It is a combination reaction. B) It is a combination reaction.
C) It is a decomposition reaction and accompanied by release of heat.
D) It is a photochemical decomposition reaction and exothermic in nature.

A particle of mass $M$ is situated at the center of a spherical shell of same mass and radius $a$. The gravitational potential at a point $a/2$ from the center is:

1 Mark(s)

Your Answer:

$-3GM/a$ $-3GM/a$
$-2GM/a$ $-2GM/a$
$-GM/a$ $-GM/a$
$-4GM/a$ $-4GM/a$

A balloon filled with 5g of hydrogen contains:

1 Mark(s)

Your Answer:

2.48 moles of H2 2.48 moles of H2
3.48 moles of H2 3.48 moles of H2
4.48 moles of H2 4.48 moles of H2
5 moles of H2 5 moles of H2

The technique used to absorb noise by using soft and porous surfaces is called:

1 Mark(s)

Your Answer:

acoustic protection acoustic protection
refraction refraction
absorption absorption
semi lunar protection semi lunar protection

Last year he almost . . . . . . . . because he . . . . . . . . his social life a little too much.

1 Mark(s)

Your Answer:

fails/has enjoyed fails/has enjoyed
was failing/has been enjoying was failing/has been enjoying
failed/was enjoying failed/was enjoying
has been failing/enjoyed has been failing/enjoyed
has failed/enjoys has failed/enjoys

Vitamin B is soluble in:

1 Mark(s)

Your Answer:

fat fat
water water
alcohol alcohol
ethers ethers

If $\vec{A} = 2\hat{i} + 3\hat{j}$ and $\vec{B} = \hat{i} - \hat{j}$, then $\vec{A} + \vec{B}$ is:

1 Mark(s)

Your Answer:

$3\hat{i} + 2\hat{j}$ $3\hat{i} + 2\hat{j}$
$3\hat{i} - 2\hat{j}$ $3\hat{i} - 2\hat{j}$
$\hat{i} + 4\hat{j}$ $\hat{i} + 4\hat{j}$
$2\hat{i} + 2\hat{j}$ $2\hat{i} + 2\hat{j}$

The trace mineral which helps in action of insulin is:

1 Mark(s)

Your Answer:

iron iron
fluoride fluoride
chromium chromium
iodine iodine

The mirror formula is given by:

1 Mark(s)

Your Answer:

$1/v + 1/u = 1/f$ $1/v + 1/u = 1/f$
$1/v - 1/u = 1/f$ $1/v - 1/u = 1/f$
$1/v + 1/u = 1/2f$ $1/v + 1/u = 1/2f$
$1/v \times 1/u = 1/f$ $1/v \times 1/u = 1/f$

The tendency of a metal to lose electron is called:

1 Mark(s)

Your Answer:

electronegativity electronegativity
electro positivity electro positivity
electroplating electroplating
electrolysis electrolysis

Ketones can be prepared from:

1 Mark(s)

Your Answer:

1° alcohols 1° alcohols
2° alcohols 2° alcohols
Aldehydes Aldehydes
Esters Esters

The component of solution which is in smaller amount is called_________________?

1 Mark(s)

Your Answer:

solvent solvent
solute solute
phase phase
ion ion

The SI unit of Magnetic Field is:

1 Mark(s)

Your Answer:

Weber Weber
Tesla Tesla
Gauss Gauss
Henry Henry

The eggs hatch in days__________?

1 Mark(s)

Your Answer:

20 20
22 22
28 28
30 30

Amaltas tree flowers colors__________?

1 Mark(s)

Your Answer:

brilliant pink brilliant pink
orange and red orange and red
white or yellow white or yellow
all all

Multiple alleles control:

1 Mark(s)

Your Answer:

Height Height
Blood group Blood group
Eye color Eye color
Skin color Skin color

Kind which is common in egg frog and toads___________?

1 Mark(s)

Your Answer:

countershadding countershadding
disappearing disappearing
hidding hidding
moving moving

Which of the following is a writing practice against legal and ethical considerations, considered a violating rule of technical writing?

1 Mark(s)

Your Answer:

Legalities Legalities
Functionalities Functionalities
Ethicalities Ethicalities
Ethics Ethics

The raw materials for the Solvay process include:

1 Mark(s)

Your Answer:

ammonia ammonia
brine brine
lime stone lime stone
all of above all of above

Vitamin A is:

1 Mark(s)

Your Answer:

Retinol Retinol
Thiamine Thiamine
Riboflavin Riboflavin
Niacin Niacin

Algae provide to the fungi which of the following _________?

1 Mark(s)

Your Answer:

food food
sun light sun light
temprature temprature
moisturation moisturation

He tames animals because he ......

1 Mark(s)

Your Answer:

is fond of them is fond of them
hates them hates them
is afraid of them is afraid of them
want to set them free want to set them free
seldom loves them seldom loves them

Which of the following is not true about ozone?

1 Mark(s)

Your Answer:

it is light blue in colour it is light blue in colour
it has unpleasant odor it has unpleasant odor
it is harmful it is harmful
it is not a pollutant it is not a pollutant

A broad road bordered with trees is?

1 Mark(s)

Your Answer:

boudoir boudoir
boulevard boulevard
avenue avenue
façade façade

The original finches ancestors come on galapagos many years ago__________?

1 Mark(s)

Your Answer:

2 million 2 million
3 million 3 million
1 million 1 million
5 million 5 million

A thread like structure of nucleic acid___________?

1 Mark(s)

Your Answer:

larvae larvae
cilia cilia
chromosomes chromosomes
ovum ovum

Which of the following temprature below where fungus cant killed _________?

1 Mark(s)

Your Answer:

52C 52C
34C 34C
56C 56C
60C 60C

When an electron is added in the valence shell than:

1 Mark(s)

Your Answer:

energy is absorbed energy is absorbed
energy is released energy is released
energy remains same energy remains same
force of attraction increases force of attraction increases

Dancer is related to Stage in the same way as Minister is related to?

1 Mark(s)

Your Answer:

Pulpit Pulpit
Assembly Assembly
Parliament Parliament
State State

Aluminium salt commonly used to stop bleeding is:?

1 Mark(s)

Your Answer:

Potash alum Potash alum
Aluminium chloride Aluminium chloride
Aluminium nitrate Aluminium nitrate
Aluminium Sulphate Answer Aluminium Sulphate Answer

Most leeches ingest large quantity of blood then they increase their size_________?

1 Mark(s)

Your Answer:

2 to 10 times 2 to 10 times
3 to 5 times 3 to 5 times
7 to 8 times 7 to 8 times
9 to 10 times 9 to 10 times

The prefix for 109 is:

1 Mark(s)

Your Answer:

giga giga
Milli Milli
nano nano
pico pico

Nelson Mandela was deprived ______ his freedom.

1 Mark(s)

Your Answer:

from from
in in
with with
of of

Evaluating Your Answers

MDCAT Mock Test 12 : Question 1 of 33