Which of these is an example of a renewable resource?
a) hydroelectric
b) oil
c) coal
d) fossil fuel
a) hydroelectric
The most commonly used bleaching agent is
A) Alcohol
B) Carbon dioxide
C) Chlorine
D) Sodium chloride
C) Chlorine
Which among the following plays a role in production of alcohol in beer?
[A] Bacteria
[B] Protozoan
[C] Virus
[D] Yeast
[D] Yeast
Concentration of matter in a material is
a) volume
b) mass
c) density
d) weight
c) density
The most abundant gas in air is
A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Water vapor
B) Nitrogen
Salamander belongs to which of the following class?
[A] Pisces
[B] Aves
[C] Reptiles
[D] Amphibian
[D] Amphibian
When light enters from vacuum in to glass, it's velocity
a) decreases
b) remains same
c) increases
d) varies depending on mass of glass
a) decreases
Which one of the following is not a mixture?
A) Milk
B) Mercury
C) Cement
D) Air
B) Mercury
Which of the following are examples of hydrophilic molecules?
[A] sugar
[B] cellulose
[C] starch
[D] all of the above
[D] all of the above
State the planets in order starting with the one closest to the sun
a) Mercury, Venus, Earth, Saturn, Uranus, Neptune,Mars, Jupiter
b) Jupiter, Saturn, Uranus, Neptune, Mercury, Venus, Earth, Mars
c) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
d) Earth, Jupiter, Mars, Mercury, Neptune Saturn, Uranus, Venus
c) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Due to which of the following acids, Milk tastes sour when kept in the open for sometime?
A) Lactic Acid
B) Citric Acid
C) Acetic Acid
D) Carbonic Acid
A) Lactic Acid
Which of the following secretes digestive enzymes into the duodenum that break down proteins, fats, and carbohydrates?
[A] Liver
[B] Pancreas
[C] Gallbladder
[D] Small intestine
[B] Pancreas
The wavelength of green light is approximately 490 nm (nanometers).
What is the order of magnitude of green light’s wavelength in meters?
a) 490x106 m
b) 490x10-6 m
c) 490x109 m
d) 490x10-9 m
d). 490x10-9 m
Which one of the following correctly defines the state of glass?
A) Crystalline solid
B) Super cooled liquid
C) Condensed gas
D) Liquid crystal
B) Super cooled liquid
Wilting of plants occurs due to excessive ____:
[A] Respiration
[B] Guttation
[C] Absorption
[D] Transpiration
[D] Transpiration
d)object 4
What are soaps?
A) Salts of silicates
B) Esters of heavy fatty acids
C) Sodium, salts of heavier fatty acids
D) Mixture of glycerol and alcohols
C) Sodium, salts of heavier fatty acids
The most serious air pollutant causing health hazard is ____:
[A] Ozone
[B] Sulfur dioxide
[C] Nitrogen oxide
[D] Carbon monoxide
[B] Sulfur dioxide
Liquids have the ability to flow because...
a) their particles can slide over each other
b) their particles have a irregular pattern
c) their particles are very far apart
d) there are strong forces of attraction between the particles
a) their particles can slide over each other
The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is
A) Carbon
B) Hydrogen
C) Nitrogen
D) Oxygen
D) Oxygen
Which of the following is an insectivorous plant?
[A] Balanophora
[B] Rafflesia
[C] Orobanche
[D] Drosera
[D] Drosera
b) waxing gibbous
The hardest form of carbon is
A) Coke
B) Graphite
C) Diamond
D) Charcoal
C) Diamond
Cellulose is an example of which kind of nutrient?
[A] Carbohydrate
[B] Vitamin
[C] Protein
[D] Fat
[A] Carbohydrate
An airplane travels at an average speed 600km/h on an outward flight and at 400km/h on a return flight over the same distance.
What is the average speed of the whole flight?
a) 111m/s
b) 167m/s
c) 480 km/h
d) 500 km/h
c) 480 km/h
The acid present in lemon is
A) lactic acid
B) marlic acid
C) citric acid
D) tartaric acid
C) citric acid
Which of the following enzyme is essential for clotting of blood?
[A] Renin
[B] Thrombin
[C] Amylase
[D] Pepsin
[B] Thrombin
A car travels 600 km. The journey takes three hours. The highest speed of the car is 80 km/h, and the lowest speed is 40 km/h. What is the average speed for the journey?
a) 50 km/h
b) 60 km/h
c) 300 km/h
d) 200 km/h
d) 200 km/h
Water drops are spherical because of
A) Polarity
B) Viscosity
C) surface tension
D) density is one
C) surface tension
Blood does not coagulate inside the body due to the presence of _____:
[A] Plasma
[B] Fibrin
[C] Hemoglobin
[D] Heparin
[D] Heparin