Choose the correct one

(a)

mm < cm < m < km

(b)

mm > cm > m > km

(c)

km < m < cm < mm

(d)

mm > m > cm > km

____________is the fundamental quantity.

(a)

Length

(b)

Area

(c)

Volume

(d)

Density

A car is being driven at a speed of 20 ms^-1 when brakes are applied to bring it to rest in 5 s. The decelaration produced in this case will be

(a)

+4 ms^-2

(b)

‒4 ms^-2

(c)

‒0.25 ms^-2

(d)

+0.25 ms^-2

Speed is never ______

(a)

fraction

(b)

negative

(c)

zero

(d)

positive

To separate two or more miscible liquids which do not differ much in the boiling points_______is employed

(a)

distillation

(b)

filtration

(c)

decantation

(d)

fractional distillation

The term nucleons refer to

(a)

Protons and electrons

(b)

only Neutrons

(c)

electrons and neutrons

(d)

Protons and neutrons

Desmodium gyrans is commonly known as_______________.

(a)

Money plant

(b)

Rose plant

(c)

Telegraph plant

(d)

Lilly plant.

Dysentery is caused by

(a)

Entamoeba

(b)

Euglena

(c)

Plasmodium

(d)

Paramecium

The first systematic approach to the classification of living organisms was made by________.

(a)

Hooker

(b)

Carolus Linnaeus

(c)

Robert

(d)

Lister

Which one of these is wrong regaring earthworm?

(a)

Metamerism

(b)

True coelom

(c)

unisexual

(d)

presence of fore limbs

The polysaccharide found in liver and muscles is ___________ .

(a)

Starch

(b)

Cellulose

(c)

Chitin

(d)

Glycogen

Nerve impulses do not get transmitted due to the deficiency of ____________.

(a)

Sodium

(b)

Calcium

(c)

Potassium

(d)

Iodine

If the electronic configuration of an element is 1s² 2s² 2p⁶ 3s² 3p¹, then it will occupy___________ block of the periodic table.

(a)

s

(b)

p

(c)

d

(d)

f

Statement (A) : Covalent compounds are bad conductor of electricity.
Reason (B) Covalent compounds contain charged particles (ions)

(a)

B explains A

(b)

B does not explain A

(c)

Both A & B are right

(d)

Both A & B are wrong

A meristematic tissue consists of

(a)

Immature cells which are in a state of division and growth

(b)

Mature cells

(c)

Non-living cells

(d)

Sclerenchyma cells

Which one of the following is an example for wireless connections?

(a)

Wi-Fi

(b)

Electric wires

(c)

VGA

(d)

USB

Which of the following are infrasonic waves?

(a)

5 kHz

(b)

25 Hz

(c)

10 Hz

(d)

15000 Hz

The antibiotic Penicillin is obtained from ___________ 

(a)

plant

(b)

microorganism

(c)

animal

(d)

sunlight

World water day is celebrated every year on ____________.

(a)

August 12

(b)

22^nd March

(c)

June 5

(d)

July 10

__________ is the method of growing plants without soil.

(a)

Horticulture

(b)

Hydroponics

(c)

Pomology

(d)

None of these.