All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>EXAM PRACTICE>Q 60

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Earn 100

Calculate the percentage composition of nitrogen in urea ${NH}_{2} {CONH}_{2}$ .

Important Questions on The Language of Chemistry

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 2

Chemical formula of glucose is represented as _____.

(A) $C_{6} H_{12} O_{6}$ (B) $C_{12} H_{22} O_{11}$ (C) $C_{5} H_{10} O$

Enter your correct answer as A, B or C.

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 3

The prefix 'tri' is used to indicate _____ atoms of an element.

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 4

{Cl}^{-}, F^{-}, {CO}_{3}^{- 2}

and

{SO}_{4}^{2 -}

are _____ radicals. (acidic / basic)

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 7

The symbol of neon is

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 8

The chemical formula of sodium chlorate is

{NaClO}_{3}

then the chemical formula of sodium hypochlorite is

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 9

Oxygen, nitrogen and platinum are respectively

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 10

F^{-}, {Cl}^{-}, K^{+} and {Na}^{+}

are the examples of

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All In One ICSE Chemistry>Chapter 1 - The Language of Chemistry>CHAPTER EXERCISE>Q 11

Which of the following is balanced chemical equation?