|
Why alkalis are placed in group 1?
|
|
3
|
2794
|
March 30, 2021
|
|
Explain why? (a) Common salt becomes sticky during the rainy season
|
|
2
|
5923
|
December 21, 2020
|
|
Physics (based on the chapter light)
|
|
1
|
5363
|
November 23, 2020
|
|
1. Name the gas collected at anode and cathode
|
|
3
|
13788
|
June 25, 2020
|
|
Write one difference between A.C and D.C
|
|
2
|
7748
|
April 12, 2020
|
|
What will be the length of a nichrome wire of resistance 5.0 ohm
|
|
1
|
2275
|
July 16, 2019
|
|
State the two laws of reflection of light
|
|
2
|
1426
|
June 12, 2019
|
|
According to the diathesis-stress model, mental disorders are caused by both
|
|
0
|
418
|
April 25, 2019
|
|
Draw a path of light ray passing through a prism. Label angle of incidence and angle of deviation in the ray diagram
|
|
1
|
803
|
April 8, 2019
|
|
A student sees that needle indicates 17 divisions in ammeter while performing an experiment to verify Ohm’s law
|
|
1
|
1032
|
April 8, 2019
|
|
Student conducted an experiment to show CO2 is released during respiration. List two precautions?
|
|
1
|
1072
|
April 8, 2019
|
|
A student observed a permanent slide showing asexual reproduction in yeast
|
|
1
|
1251
|
April 8, 2019
|
|
Observe when you drop a few drops of acetic acid to a test tube containing: Phenolphthalein
|
|
1
|
699
|
April 5, 2019
|
|
(a) What do you understand by “Watershed Management”?
|
|
1
|
2930
|
April 5, 2019
|
|
(a) “Improvements in our lifestyle have resulted in greater amounts of waste generation.”
|
|
1
|
6676
|
April 5, 2019
|
|
(a) What is reactivity series?
|
|
1
|
812
|
April 5, 2019
|
|
1. What kind of defect in vision is she suffering from?
|
|
1
|
1188
|
April 5, 2019
|
|
1. Draw a neat diagram of human brain and Label Medulla and Cerebellum
|
|
1
|
2765
|
April 5, 2019
|
|
Draw the structural formulae of all the possible isomers
|
|
1
|
425
|
April 5, 2019
|
|
In bow many ways one can join the models of six carbon atoms and fourteen hydrogen atoms
|
|
1
|
1042
|
April 5, 2019
|
|
Find the direction of magnetic field associated with a current carrying conductor
|
|
1
|
480
|
April 5, 2019
|
|
(a) To which category of diseases AIDS belong? Name its causative organism
|
|
1
|
3634
|
April 5, 2019
|
|
Why are fossils considered important in the study of evolution?
|
|
1
|
1008
|
April 5, 2019
|
|
“pH has a great importance in our daily life” explain by giving three examples
|
|
1
|
12459
|
April 5, 2019
|
|
Rohit focused the image of a candle flame on a white screen using a convex lens
|
|
1
|
1831
|
April 5, 2019
|
|
How do Mendel’s experiments show that traits may be dominant or recessive?
|
|
1
|
672
|
April 5, 2019
|
|
Explain the ways in which glucose is broken down in absence of oxygen
|
|
1
|
6510
|
April 5, 2019
|
|
Differentiate between the Mendeleev’s periodic table and Modern periodic table
|
|
1
|
558
|
April 5, 2019
|
|
Name the electric device that converts mechanical energy into electrical energy
|
|
1
|
699
|
April 5, 2019
|
|
Why is there a need to harness non-conventional sources of energy? Give two main reasons
|
|
1
|
546
|
April 5, 2019
|
