Login
Login
Register
Questions
Unanswered
Tags
Categories
Ask a Question
Ask a Question
Recent questions tagged physical
+3
votes
1
answer
Classify the following changes as physical or chemical. 1. boiling — 2. curdling of milk —
asked
Apr 7, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+3
votes
1
answer
Physical changes are 1. permanent. 2. periodic, 3. temporary
asked
Apr 3, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+2
votes
1
answer
The reaction of iron with copper sulphate solution is an example of :
asked
Apr 1, 2019
in
Class 10
by
kratos
physical
cbse
class-8
metals and non metals
acids bases and salts
class-7
class-10
chemical changes
chemical reactions and equations
materials
+1
vote
1
answer
Melting of solid (wax) is a physical change.
asked
Mar 28, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+3
votes
1
answer
Match the columns. Column A Column B 1. A change which cannot be easily reversed (a) man-made change
asked
Mar 27, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+2
votes
1
answer
When you put some ice cubes in a glass, droplets of water are formed on the outerwall of the glass. This explains the phenomenon of
asked
Mar 26, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+2
votes
1
answer
Energy in the form of is absorbed during photosynthesis.
asked
Mar 26, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+1
vote
1
answer
Classify the following changes as physical or chemical. a. boiling b. curdling of milk
asked
Mar 8, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+3
votes
1
answer
When a candle burns, both physical and chemical changes take place. Identify these changes.
asked
Mar 8, 2019
in
Physics
by
kratos
physical
cbse
class-7
chemical changes
physical and chemical changes
+2
votes
1
answer
Define Crystalisation.
asked
Mar 7, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+1
vote
1
answer
Energy in the form of .................is absorbed during photosynthesis.
asked
Mar 5, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+1
vote
1
answer
Melting of ice is a 1. reversible change, 2. irreversible change,
asked
Mar 1, 2019
in
Physics
by
kratos
physical
class-7
chemical changes
class-8
icse
+2
votes
1
answer
A pop sound is heard when a lighted match stick is brought near the mouth of a jar. This indicates the release of gas.
asked
Feb 27, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+1
vote
1
answer
What is galvanisation?
asked
Feb 26, 2019
in
Class 12
by
kratos
metals and nonmetals
physical
class-8
chemical changes
class-10
class-7
metals and non-metals
class-12
metallurgy
+1
vote
1
answer
Give reasons for the following. 1.Chemical changes are accompanied by changes in energy.
asked
Feb 24, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+2
votes
1
answer
State whether the following are physical or chemical changes. 1.passing electric current through a heater rod 2.water cycle in nature
asked
Feb 23, 2019
in
Physics
by
kratos
chemical changes
class-7
icse
physical
+2
votes
1
answer
Write true or false against the following statements : 1. Cutting of paper into pieces is a chemical change.
asked
Feb 21, 2019
in
Physics
by
kratos
chemical changes
class-7
icse
physical
+1
vote
1
answer
Explain why rusting of iron objects is faster in coastal areas than in deserts.
asked
Feb 21, 2019
in
Physics
by
kratos
chemical changes
physical and chemical changes
class-7
physical
+1
vote
1
answer
Solve this crossword by using the clues that follow Across 1. Energy in the form of sunlight is absorbed by the green plants in this process
asked
Feb 18, 2019
in
Physics
by
kratos
physical
class-8
class-7
icse
chemical changes
+2
votes
1
answer
A child while playing with his father’* spectacles burnt a **** in a piece of them tissue paper by focusing the image of the Sun on at.
asked
Feb 17, 2019
in
Class 12
by
kratos
neet
physical
reflection of light
cbse
jee
class-10
icse
optics
jee mains
class-7
chemical changes
To see more, click for the
full list of questions
or
popular tags
.