CSS Everyday Science Mock Test 10

Which of the following elements does not lose an electron easily?

1 Mark(s)

Your Answer:

A) Na A) Na
B) F B) F
C) Mg C) Mg
D) Al D) Al

Following are the constituent of polluted air cause of Acid rain except?

1 Mark(s)

Your Answer:

Argon Argon
Nitrogen Nitrogen
Sulphur dioxide Sulphur dioxide
Oxygen Oxygen

2 – Phenylpropene on acidic hydration gives

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Your Answer:

A) 2 – Phenyl – 2 – propanol A) 2 – Phenyl – 2 – propanol
B) 2 – Phenyl – 1 – propanol B) 2 – Phenyl – 1 – propanol
C) 3 – Phenyl – 1 – propanol C) 3 – Phenyl – 1 – propanol
D) 1 – Phenyl – 2 – propanol D) 1 – Phenyl – 2 – propanol

The speed of sound in air depends on the:

1 Mark(s)

Your Answer:

chemical conditions chemical conditions
Physical conditions Physical conditions
pitch pitch
Area Area

The ratio of fluid and sperms (respectively) in semen is:

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Your Answer:

85% and 15% 85% and 15%
75% and 25% 75% and 25%
90% and 10% 90% and 10%
70% and 30% 70% and 30%

A hunter aims his gun directly at a monkey hanging from a tree. At the instant the bullet leaves the gun, the monkey drops. The bullet will:

1 Mark(s)

Your Answer:

Hit the monkey Hit the monkey
Pass above the monkey Pass above the monkey
Pass below the monkey Pass below the monkey
Depends on bullet speed Depends on bullet speed

Aldehyde and ketone have same general formula for homologous series_________________?

1 Mark(s)

Your Answer:

CnH2nO2n CnH2nO2n
CnH2n CnH2n
CnH2nO CnH2nO
CnH2nOn+1 CnH2nOn+1

The value of 'g' on the surface of the Moon is approximately:

1 Mark(s)

Your Answer:

Same as Earth Same as Earth
1/2 of Earth 1/2 of Earth
1/6 of Earth 1/6 of Earth
1/10 of Earth 1/10 of Earth

Rotifers ends with___________?

1 Mark(s)

Your Answer:

tail tail
toe toe
legs legs
head head

Valence electrons in $\ce{S}$ (Z=16):

1 Mark(s)

Your Answer:

4 4
5 5
6 6
7 7

Which one of the following clouds is found at the highest level in the atmospher?

1 Mark(s)

Your Answer:

Stratus Stratus
Cumulus Cumulus
Stratocumulus Stratocumulus
Cirrus Cirrus

Nerve cord and commissure give the look to turbellarian __________?

1 Mark(s)

Your Answer:

ladder like ladder like
lizard like lizard like
rigid rigid
shiny shiny

Neurotransmitter function:

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Your Answer:

Electrical signals Electrical signals
Chemical messaging Chemical messaging
Receptor Receptor
Synapse Synapse

An alkane with molecular formula C10H22 is called:

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Your Answer:

butane butane
octane octane
Nonane Nonane
Decane Decane

Part of the gynoecium which receives the pollen is called

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Your Answer:

A) style A) style
B) stigma B) stigma
C) ovule C) ovule
D) ovary D) ovary

Statins work by inhibiting:

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Your Answer:

Cell wall synthesis Cell wall synthesis
Protein synthesis Protein synthesis
DNA replication DNA replication
Cholesterol synthesis enzyme Cholesterol synthesis enzyme

Microscopic cellular membrane protrusions____________?

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Your Answer:

microvilli microvilli
microorganism microorganism
molecules molecules
cells cells

Syphilis is a sexually transmitted infection caused by:

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Your Answer:

Treponema pallidum Treponema pallidum
Neisseria gonorrhoeae Neisseria gonorrhoeae
Chlamydia trachomatis Chlamydia trachomatis
Human Papilloma Virus Human Papilloma Virus

Albatros is__________?

1 Mark(s)

Your Answer:

A sea bird A sea bird
A beetle A beetle
A fruit A fruit
None None

Proteins that catalyze specific biological reactions without which life would be impossible are called:

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Your Answer:

gelatin gelatin
enzymes enzymes
amylase amylase
lactase lactase

Sphygmomanometers measures blood pressure ?

1 Mark(s)

Your Answer:

Statically Statically
Dynamically Dynamically
Some time static and sometimes dynamic Some time static and sometimes dynamic
None of these None of these

n an LCR series circuit, if V is the effective value of the applied voltage VR is the voltage across R VL is the effective voltage across L & Vc is the effective voltage across C then_______________?

1 Mark(s)

Your Answer:

V2 = VR2+VL2+VC2 V2 = VR2+VL2+VC2
V2 = VR2+(VL-VC)2 V2 = VR2+(VL-VC)2
V2 = VL2+(VR-VC)2 V2 = VL2+(VR-VC)2

The phase difference between induced emf and magnetic flux in AC generator is:

1 Mark(s)

Your Answer:

0 0
$\pi/2$ $\pi/2$
$\pi$ $\pi$
$2\pi$ $2\pi$

A substance which increases the rate of reaction is called:

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Your Answer:

catalyst catalyst
reactant reactant
product product
coordinator coordinator

Characters of one cell transfer to another by__________?

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Your Answer:

air air
DNA DNA
water water
heat heat

LPG consists of mainly:___________?

1 Mark(s)

Your Answer:

Methane, Ethane and Hexane Methane, Ethane and Hexane
Ethane, Hexane and Nonane Ethane, Hexane and Nonane
Methane, Hexane and Nonane Methane, Hexane and Nonane
Methane, Butane and Propane Methane, Butane and Propane

DNA stands for:

1 Mark(s)

Your Answer:

Deoxyribose acid Deoxyribose acid
Deoxyribonucleic acid Deoxyribonucleic acid
Diribonucleic acid Diribonucleic acid
Deoxyribosome acid Deoxyribosome acid

The adiantum class is following ___________?

1 Mark(s)

Your Answer:

Pteropsida Pteropsida
Filicales Filicales
Leptosporangiopsida Leptosporangiopsida
Polypodiaceae Polypodiaceae

Equivalent weight of base:

1 Mark(s)

Your Answer:

Molar mass Molar mass
Molar mass/acidity Molar mass/acidity
Molar mass × 2 Molar mass × 2
No meaning No meaning

Attraction is seen between the poles of two bar magnets in the case of

1 Mark(s)

Your Answer:

A) N-pole of one magnet with N-pole of other
B) N-pole of one magnet with S-pole of other
C) S-pole of one magnet with S-pole of other
D) all of these cases will show attraction

Erthartoideae have following species ___________?

1 Mark(s)

Your Answer:

Rice Rice
Aristida Aristida
Giant reed Giant reed
None None

All forms of energy that we use are ultimately transformed into__________?

1 Mark(s)

Your Answer:

Electrical Energy Electrical Energy
Heat Energy Heat Energy
Light Energy Light Energy
Chemical Energy Chemical Energy

Zinc reacts with $\ce{NaOH}$ to give:

1 Mark(s)

Your Answer:

$\ce{ZnO}$ $\ce{ZnO}$
$\ce{Zn(OH)2}$ $\ce{Zn(OH)2}$
$\ce{Na2ZnO2}$ $\ce{Na2ZnO2}$
$\ce{ZnCl2}$ $\ce{ZnCl2}$

The oxidation state of group IIIA metals is:

1 Mark(s)

Your Answer:

-3 -3
3 3
0 0
1 1

The power of lens is:

1 Mark(s)

Your Answer:

1 ⁄ p 1 ⁄ p
1 ⁄ q 1 ⁄ q
1 ⁄ f 1 ⁄ f
1 ⁄ l 1 ⁄ l

Which of the following effects best explains that o-nitrophenol is insoluble in water?

1 Mark(s)

Your Answer:

Inductive effect Inductive effect
Resonance effect Resonance effect
Intermolecular H-bonding Intermolecular H-bonding
Isomeric effect Isomeric effect

The atoms of metals form:

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Your Answer:

anions anions
molecules molecules
cation cation
none of above none of above

The arrangement of ________ speaks of the division of labour within cell?

1 Mark(s)

Your Answer:

Molecule Molecule
Subatomic particles Subatomic particles
Atoms Atoms
Organelles Organelles

What does one mole of CO2 contain?

1 Mark(s)

Your Answer:

6.022 × 10^23 molecules 6.022 × 10^23 molecules
44 grams 44 grams
12 grams of carbon 12 grams of carbon
22.4 liters at STP 22.4 liters at STP

All receptors are__________?

1 Mark(s)

Your Answer:

Chemicals Chemicals
Signals Signals
Transducers Transducers
Hormones Hormones

The carnivore animals are classified as:

1 Mark(s)

Your Answer:

assimilators assimilators
competitors competitors
communicators communicators
predators predators

The time a current of 30 mA takes to deliver 30 C charge is:

1 Mark(s)

Your Answer:

0.3 s 0.3 s
0.003 s 0.003 s
0.4 s 0.4 s
0.5 s 0.5 s

In Haber's process, the amount of ammonia yields is:

1 Mark(s)

Your Answer:

0.4 0.4
0.9 0.9
0.33 0.33
0.22 0.22

The process of formation of fossils in the rocks is called following__________?

1 Mark(s)

Your Answer:

Fossilization Fossilization
Plantation Plantation
Organization Organization
Occumulation Occumulation

Activity of sample:

1 Mark(s)

Your Answer:

Total number of atoms Total number of atoms
Decay rate Decay rate
Energy per decay Energy per decay
Mass of sample Mass of sample

Bt toxin acts by:

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Your Answer:

Inhibiting DNA synthesis Inhibiting DNA synthesis
Blocking nerve impulses Blocking nerve impulses
Creating pores in midgut epithelium Creating pores in midgut epithelium
Inhibiting respiration Inhibiting respiration

Cellular respiration occurs in:

1 Mark(s)

Your Answer:

Mitochondria Mitochondria
Chloroplasts Chloroplasts
Nucleus Nucleus
Ribosomes Ribosomes

Vulcanization of rubber involves:

1 Mark(s)

Your Answer:

Adding plasticizer Adding plasticizer
Heating only Heating only
Heating with sulfur Heating with sulfur
Adding filler Adding filler

How Many Brains Does an Octopus Have?

1 Mark(s)

Your Answer:

7 7
8 8
9 9
6 6

_________ controls the heart rate?

1 Mark(s)

Your Answer:

Pituitary Pituitary
Thalamus Thalamus
Medulla Medulla
Neocortex Neocortex

Bryophytes grow on mostly _________?

1 Mark(s)

Your Answer:

Moist habitat Moist habitat
Cold habitat Cold habitat
Dry habitat Dry habitat
A and b both A and b both

During the night time, the air above the land loses heated up its density ____?

1 Mark(s)

Your Answer:

Decrease Decrease
Fluctuate Fluctuate
Remain same Remain same
Increase Increase

Study of relationship of organisms to their environment is called?

1 Mark(s)

Your Answer:

Embryology Embryology
Ecology Ecology
Ethology Ethology
Entomology Entomology

Which one of the following compound does not have – OH group___________________?

1 Mark(s)

Your Answer:

ethylene glycol ethylene glycol
glycerol glycerol
picric acid picric acid
ethyl acetate ethyl acetate

Which one of the following decreases along the period?

1 Mark(s)

Your Answer:

Ionization Energy Ionization Energy
Atomic Radius Atomic Radius
Electronegativity Electronegativity
Electron Affinity Electron Affinity

Halogens react with metals to form:

1 Mark(s)

Your Answer:

Halides Halides
oxides oxides
halogen compounds halogen compounds
hydrogenated compounds hydrogenated compounds

Two rings of radius $R$ and $nR$ made of same material wire have the same moment of inertia about an axis through center and perpendicular to plane. The value of $n$ is:

1 Mark(s)

Your Answer:

4 4
2 2
3 3
0.5 0.5

Skin has ___________ layers?

1 Mark(s)

Your Answer:

One One
Two Two
Three Three
Four Four

Which element is necessary for normal leaf development ?

1 Mark(s)

Your Answer:

Si Si
Ba Ba
Mg Mg
Ca Ca

Layer of atmosphere which separates stratosphere and troposphere is known as?

1 Mark(s)

Your Answer:

Tropo-pause Tropo-pause
Mesopause Mesopause
Stratopause Stratopause
Thermopause Thermopause

By decreasing the pressure the reaction will go to that direction where_________________?

1 Mark(s)

Your Answer:

volume is decreased volume is decreased
volume increased volume increased
heat absorbed heat absorbed
no. of moles of specie decreased no. of moles of specie decreased

The loss of electrons is known as:

1 Mark(s)

Your Answer:

anabolism anabolism
metabolism metabolism
oxidation oxidation
reduction reduction

Which quantum number determines energy in hydrogen?

1 Mark(s)

Your Answer:

n (principal) n (principal)
l (azimuthal) l (azimuthal)
m (magnetic) m (magnetic)
s (spin) s (spin)

Kidneys filter blood to produce:

1 Mark(s)

Your Answer:

urea urea
uric acid uric acid
urine urine
ammonia ammonia

An alternating current of the r.m.s value of 4.0 A and frequency 50Hz flows in a circuit containing a 10Ω resistor. The peak current is then ?

1 Mark(s)

Your Answer:

20A 20A
20.66A 20.66A
6.66A 6.66A
5.66A 5.66A

A vector can have maximum________components in a plane.?

1 Mark(s)

Your Answer:

Zero Zero
Two Two
Three Three
Infinite Infinite

A cyclist cycling around a circular racing track skids because_____________?

1 Mark(s)

Your Answer:

the centripetal force upon him is less than limiting friction
the centripetal force upon him is greater than limiting friction
the centripetal force upon him is equal to the limiting friction
the friction between the tyres of the cycle and road vanishes

The hormone that regulates blood calcium is:

1 Mark(s)

Your Answer:

Insulin Insulin
Thyroxine Thyroxine
Parathormone Parathormone
Adrenaline Adrenaline

Size of virus_________?

1 Mark(s)

Your Answer:

large large
small small
medium medium
minimum minimum

Polychaetes have eyes__________?

1 Mark(s)

Your Answer:

2 to 4 pairs 2 to 4 pairs
1 pair 1 pair
3 pairs 3 pairs
5 pairs 5 pairs

Evaluating Your Answers

CSS Everyday Science Mock Test 10 : Question 1 of 70