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time taken to → 4 2 8 ….. (i) taken complete work → 7 2 3…… (ii) time complete work → 4 7 3…..(iii) From(i) and (iii), complete /work → 3 / 7 Hence the code for ‘work’ is either 3 or 7.
How many oxygen atoms are present in a molecule of Aluminum sulfate, Al₂(SO4₄)₃ ?
A substance X turns the colour of red litmus blue, and it will change methyl orange-
Which element is used in pencil leads?
The nucleus of an atom consists of-
Gunpowder consists of a mixture of:
What are Sodium benzoate and Sodium metabisulphite primarily used as?
What components make up the mixture known as Producer gas?
Based on the periodic trends for ionization energy, which element has the highest ionization energy?
Which gas is primarily used in the filling of incandescent light bulbs?
What is the Chemical name of Chromic Acid?