EASY
11th Odisha Board
IMPORTANT
Earn 100

Carbon and oxygen are known to form two compounds, The carbon content in one of these is 42.9% while in the other is 27.3%. Show that the data are in agreement with the law of multiple proportions.

Important Questions on Basic Concepts Atoms & Molecules

MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 5
Three oxides of a metal M are found to contain 24.26, 29.95, and 49.95 percent of oxygen. Show that these results are in agreement with law of multiple proportions.
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 6
Phosphorus chloride contains 22.57% phosphorus, phosphine contains 8.82% hydrogen, and hydrogen chloride contains 97.23% chlorine. Show that these figures agree with the law of reciprocal proportions.
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 7
KI contains 23.6% potassium. KCl contains 52% potassium. ICl contains 77.8% iodine. Show that these data are in agreement with law of reciprocal proportions.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 1
Atomic mass of which element is taken as standard when defining the relative atomic mass of other elements. 
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 2
Define isotopes.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 3
What value has the relative atomic mass of oxygen ?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 4
What is the mass of 1 atom of carbon ?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 5
The equivalent mass of a trivalent metal is 9. What will its relative atomic mass ?