Science and Tech SA2 Portions

Quiz
•
Science
•
11th Grade
•
Hard
Snehalatha H.S
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The SI unit of length is:
Centimeter
Meter
Kilometer
Millimeter
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A scientist measures the time taken by a pendulum to complete one oscillation. The most suitable instrument for this is:
Thermometer
Vernier Calipers
Stopwatch
Measuring Tape
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The accuracy of a measurement depends on:
The least count of the instrument
The observer’s skill
The size of the object
The environment
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When iron reacts with copper sulfate solution, the color of the solution changes due to:
Formation of rust
Formation of iron sulfate
Liberation of hydrogen gas
Evaporation of water
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A balanced chemical equation obeys:
The law of definite proportions
The law of conservation of mass
The law of multiple proportions
The ideal gas law
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The process of passing electricity through water to produce hydrogen and oxygen gas is called:
Electrolysis
Sublimation
Neutralization
Oxidation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The fundamental particle that does not carry any charge is:
Proton
Neutron
Electron
Positron
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