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WorksheetsQuiz Mixture
Total questions: 15
Worksheet time: 8mins
Pressure has the same dimension as ____________
energy per unit volume
force per unit volume
Energy
Force
Forced Energy
Which of the following is the most electronegative element in the periodic table?
Hydrogen
Oxygen
Fluorine
Chlorine
Helium
Which branch of chemistry deals with the study of carbon and its compounds?
Inorganic chemistry
Organic Chemistry
Analytical Chemistry
Biochemistry
The coldest region of the atmosphere
Mesosphere
Troposphere
Thermosphere
Stratosphere
Rusting of iron involves a chemical reaction which is a combination of
Reduction as well as combination reactions
Oxidation as well as combination reactions
Reduction as well as displacement reactions
Oxidation as well as displacement reactions
Half-life of 10g of radioactive substance is 10 days. The half-life of 20 g is
10 days
5 days
20 days
40 days
In which state of matter are the particles mostly touching but arranged in a random way?
Solid
Liquid
Gas
Gaseous Nitrogen
Chemical kinetics, a branch of physical chemistry, deals with:
Hint
Define the term chemical kinetics.
Rate of reactions
heat changes in a reaction
Structures of molecules
physical changes in a reaction
Which of the following statement is incorrect for a chemical reaction?
Hint-State and explain the characteristics of chemical reactions-L1(6-8), ICSE 7, Selina 2018,pg#63-65
Heat may be given out but never absorbed.
Sound may be produced.
A colour change may take place.
A gas may be evolved.
Which of the following is the formula for propane?
C3H6
C3H8
C3H10
C3H18
Which of these increases the kinetic energy of a car the most?
Doubling the mass
They are the same
Doubling the velocity
Doubting the massive velocity
Relative velocity is a
Vector quantity
Scalar quantity
Dimensionless quantity
None of the options
More Dimensions
What are adverbs
a word or phrase that modifies or qualifies an adjective, verb, or other adverb
a word that can function as a noun phrase used by itself and that refers either to the participants in the discourse
Naming words
Describing things
Doing actions
Find the adverb
My sculpture was beautifully carved.
Beautifully
Carved
Sculpture
My
A cat, on seeing a rat at a distance d = 5 m, starts with velocity u = 5 m/s and moves with the acceleration
α=2.5ms−2
in order to catch it, while the rate with the acceleration
β
starts from rest. For what value of
β
will the cat overtake the rat? (in
ms−2
)
Hint-Solve problems by using combination of two or more equations of motion involving simple calculations.
4
5
6
7
8
