Molecules of compounds are formed by:
Different elements in fixed ratios
A compound is formed when atoms of two or more different elements combine chemically in a fixed, definite ratio by mass.
Hence, the correct answer is Different elements in fixed ratios.
Similar Questions
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The molecular mass of carbon dioxide is:
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When 16 g of oxygen is combined with 2 g of hydrogen, 18 g water is formed. This observation is in accordance with:
Important Questions from Basic Concepts of Chemistry
Which of the following pair is correct?
I. Isotopes – different mass numbers
II. Isobars – different atomic numbers
Which of the following is a zone of a flame?
I. Dark
II. Luminous
III. Non-Luminous
If formula of sodium salt of an anion X is \(Na_2X\) , then the formula of its aluminium salt would be
Which of the following set contains same number of molecules?
A. 1 gram O 2, 2 grams SO 2
B. 1 gram CO 2, 1 gram N 2O
C. 1 gram O 2, 1 gram O 3
The volume of CO 2liberated at STP when 10 gm of 90% pure limestone strongly heated is
