Question
When kept in air for some time, a layer of green colored
basic carbonate forms on the metal, that metal is ___________________ .Solution
Copper metal when exposed to air turns green in colour due to corrosion. When a copper vessel is exposed to air in the rainy season, the metal reacts with gases, moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide. This gives a green colour to the surface of copper metal.
Find the missing term in the following question:
Select the missing number from the given alternatives:
Select the number from among the given option that can replace the question mark (?) in the following series.
6, 31, 126, 381, 766, ?
Study the given matrix carefully and select the number from among the given options that can replace the question mark (?) in it.
What number should replace the question mark?Â
What number should come in the place of question mark?
Find the missing number by analysing the pattern followed by the numbers in each row.
Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 10, 6, 964
Second row: 7, 3...Study the given pattern carefully and select the number that can replace the question mark [?] in it?
M/14 : O/12 : : U/6 : ?
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