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IMPORTANT
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Two atoms are said to be isotopes, if _____.

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Important Questions on Chemistry

EASY
RPF Constable CBT 1
IMPORTANT
Study Package Railway Recruitment Boards (RRBs) Level 1>Chapter 49 - Chemistry>Practice Exercise>Q 102
Who is the founder of quantum theory of radiation? 
EASY
RPF Constable CBT 1
IMPORTANT
Study Package Railway Recruitment Boards (RRBs) Level 1>Chapter 49 - Chemistry>Practice Exercise>Q 103
Atomic theory of matter was given by _____.
EASY
RPF Constable CBT 1
IMPORTANT
Study Package Railway Recruitment Boards (RRBs) Level 1>Chapter 49 - Chemistry>Practice Exercise>Q 104
Any change in matter that results in the disappearance of one or more substances and the appearance of one or more substances, each having its own set of intensive properties is known as _____.
EASY
RPF Constable CBT 1
IMPORTANT
Study Package Railway Recruitment Boards (RRBs) Level 1>Chapter 49 - Chemistry>Practice Exercise>Q 105
Which of the following is compound? 
EASY
RPF Constable CBT 1
IMPORTANT
Study Package Railway Recruitment Boards (RRBs) Level 1>Chapter 49 - Chemistry>Practice Exercise>Q 106
LPG ( Liquified Petroleum Gas) is a _____.
EASY
RPF Constable CBT 1
IMPORTANT
Study Package Railway Recruitment Boards (RRBs) Level 1>Chapter 49 - Chemistry>Practice Exercise>Q 107
Which of the following is a true statement about the physical change? 
MEDIUM
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IMPORTANT
Study Package Railway Recruitment Boards (RRBs) Level 1>Chapter 49 - Chemistry>Practice Exercise>Q 108
Which of the following is not a chemical change? 
EASY
RPF Constable CBT 1
IMPORTANT
Study Package Railway Recruitment Boards (RRBs) Level 1>Chapter 49 - Chemistry>Practice Exercise>Q 109
Which of the following is always accompanied during a chemical change?