Worksheetsphch
Total questions: 22
Worksheet time: 7mins
tick the natural indicators
turmeric
phenophthalien
iodine solution
methylene blue
When an equal strength acid and base are mixed, what kind of chemical reaction occurs?
Neutralization
Combustion
Oxdation
Decomposition
FORMIC ACID IS FOUND IN
CURD
AMLA
VINEGAR
ANT'S STING
IF YOU DIP RED LITMUS PAPER INTO A SOLUTION AND IT TURNS BLUE. THE SOLUTION IS
NUETRAL
ACID
BASE
NONE OF THESE
the S.I unit of speed is
cm/s
cm
m
m/s
Speed =
distance covered
distance covered X time taken
distance covered / time taken
time taken / distance covered
Motion which repeats itself in a regular intervals of time is called ..............
Linear motion
circular motion
periodic motion
irregular motion
Motion of objects can be presented in pictorial form by their...............
distance- speed graph
distance-time graph
time-time graph
speed- distance graph
Which of the following is used to measure the distance traveled by a vehicle?
Speedometer
hydrometer
odometer
manometer
Motion of earth is a combination of
linear and circular motion
circular and irregular motion
linear and periodic motion
circular and periodic motion
A reflecting surface is curved outwards. Which of the following mirrors is it likely to be?
A) Concave
B) Plane
C) Convex
D) All of the above
Which of the following is NOT a characteristic feature of a convex mirror?
A) The image is virtual
B) The image is diminished in size.
C) The image is erect.
D) The image is real.
Example of a luminous object
Sun
Moon
Pencil
Wall
Type of mirror found in a bathroom...
Plane
Convex
Concave
The chemical formula of Calcium Chloride is-
CaCl2
Ca2Cl
CaCl
None
Which of the following is not a chemical change?
Photosynthesis
Digestion of food
Respiration in plants and animals
Breaking of glass
The products of Neutralisation reaction are-
Acid, water
Base, salt
Base, water
Salt, water
The chemical formula of sodium is.
So
No
Na
Sd
