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Differentiate between soap and detergent
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1
|
82207
|
September 21, 2016
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With the help of a chemical equation, explain how a soda-acid fire extinguisher helps in putting out a fire
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1
|
14635
|
August 5, 2019
|
|
What will be the length of a nichrome wire of resistance 5.0 ohm
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1
|
2629
|
July 16, 2019
|
|
State laws of refraction
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2
|
2999
|
June 12, 2019
|
|
What is Tyndall effect?
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|
1
|
5976
|
June 12, 2019
|
|
State the two laws of reflection of light
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2
|
2583
|
June 12, 2019
|
|
Draw a path of light ray passing through a prism. Label angle of incidence and angle of deviation in the ray diagram
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|
1
|
1383
|
April 8, 2019
|
|
A student sees that needle indicates 17 divisions in ammeter while performing an experiment to verify Ohm’s law
|
|
1
|
1885
|
April 8, 2019
|
|
Student conducted an experiment to show CO2 is released during respiration. List two precautions?
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|
1
|
1522
|
April 8, 2019
|
|
A student observed a permanent slide showing asexual reproduction in yeast
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|
1
|
1847
|
April 8, 2019
|
|
Observe when you drop a few drops of acetic acid to a test tube containing: Phenolphthalein
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|
1
|
910
|
April 5, 2019
|
|
(a) What do you understand by “Watershed Management”?
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|
1
|
3533
|
April 5, 2019
|
|
(a) “Improvements in our lifestyle have resulted in greater amounts of waste generation.”
|
|
1
|
8504
|
April 5, 2019
|
|
(a) What is reactivity series?
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|
1
|
1149
|
April 5, 2019
|
|
1. What kind of defect in vision is she suffering from?
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|
1
|
2194
|
April 5, 2019
|
|
1. Draw a neat diagram of human brain and Label Medulla and Cerebellum
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|
1
|
4850
|
April 5, 2019
|
|
Draw the structural formulae of all the possible isomers
|
|
1
|
649
|
April 5, 2019
|
|
In bow many ways one can join the models of six carbon atoms and fourteen hydrogen atoms
|
|
1
|
1616
|
April 5, 2019
|
|
Find the direction of magnetic field associated with a current carrying conductor
|
|
1
|
825
|
April 5, 2019
|
|
(a) To which category of diseases AIDS belong? Name its causative organism
|
|
1
|
7070
|
April 5, 2019
|
|
Why are fossils considered important in the study of evolution?
|
|
1
|
1234
|
April 5, 2019
|
|
“pH has a great importance in our daily life” explain by giving three examples
|
|
1
|
17825
|
April 5, 2019
|
|
Rohit focused the image of a candle flame on a white screen using a convex lens
|
|
1
|
2736
|
April 5, 2019
|
|
How do Mendel’s experiments show that traits may be dominant or recessive?
|
|
1
|
1000
|
April 5, 2019
|
|
Explain the ways in which glucose is broken down in absence of oxygen
|
|
1
|
7667
|
April 5, 2019
|
|
Differentiate between the Mendeleev’s periodic table and Modern periodic table
|
|
1
|
806
|
April 5, 2019
|
|
Name the electric device that converts mechanical energy into electrical energy
|
|
1
|
1159
|
April 5, 2019
|
|
Why is there a need to harness non-conventional sources of energy? Give two main reasons
|
|
1
|
771
|
April 5, 2019
|
|
An object of height 1.2 m is placed before a concave mirror of focal length 20 cm
|
|
1
|
8206
|
April 5, 2019
|
|
An element 'X' has mass number 35 and the number of neutrons, is 18
|
|
1
|
896
|
April 5, 2019
|