The maximum resistance which can be made using four resistors each of resisitance 1/2 ohm is
Anonymous Quiz
36%
2ohm
23%
1ohm
33%
2.5ohm
8%
8ohm
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When an object is kept within the focus of a concave mirror an enlarged image is formed behind the mirror. the image is
Anonymous Quiz
23%
Real
24%
Inverted
30%
Virtual and inverted
23%
Virtual and erect
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Forwarded from Shubham Jha - Class 11 & 12 (Shubham Jha)
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Brine is an
Anonymous Quiz
38%
Aqueous solution of sodium chloride
37%
Aqueous solution of sodium carbonate
19%
Aqueous solution hydroxide
6%
None
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How many water molecules does hydrated cal-cium sulphate contain
Anonymous Quiz
24%
3
35%
5
30%
2
12%
None
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Lime water reacts with chlorine to give
Anonymous Quiz
46%
Bleaching powder
30%
Baking soda
13%
Baking powder
12%
Washing soda
๐ฅ8๐ฅฐ3๐ค3๐1
Nettle sting is a natural source of which acid?
Anonymous Quiz
31%
Metiwanoic acid
36%
Latic acid
19%
Citric acid
14%
Tantric acid
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When copper oxide and dilute hydrochloric acid react, colour changes to
Anonymous Quiz
24%
White
48%
Bluish green
17%
Blue black
11%
Green
๐ฅ13๐4
The condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called:
Anonymous Quiz
23%
Antioxidant
20%
Reduction
53%
Rancidity
4%
Corrosion
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What type of chemical reactions take place when electricity is passed through water?
Anonymous Quiz
19%
Displacement
23%
Combustion
42%
Decomposition
16%
Double displacement
๐6๐ฅฐ5
Copper displaces which of the following metals from its salt solution:
Anonymous Quiz
39%
Znso4
29%
Feso4
24%
Agno3
8%
Niso4
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Some crystals of copper sulphate were dissolved in water. The colour of the solution obtained would be:
Anonymous Quiz
20%
Green
25%
Red
44%
Blue
11%
Brown
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Heat is evolved during:
Anonymous Quiz
58%
Endothermic
14%
Displacement
23%
Combustion
5%
Combination
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Test - Gravitation and Heredity and Evolution.pdf
136.6 KB
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