MEDIUM
RRB NTPC CBT 1
IMPORTANT
Earn 100

In nuclear reactors, graphite is used as a/an: 

50% studentsanswered this correctly

Important Questions on Chemistry

MEDIUM
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 52 - Chemistry>Practice Exercise>Q 19
Which of the following does not forms a hydrogen bond?
EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 52 - Chemistry>Practice Exercise>Q 20
What are isobars?
MEDIUM
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 52 - Chemistry>Practice Exercise>Q 21
A radioactive substance has a half life of six months. Three-fourth of the substance will decay in _____.
EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 52 - Chemistry>Practice Exercise>Q 22
_____ is not a chemical change.
EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 52 - Chemistry>Practice Exercise>Q 23
Anions are formed by _____.
EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 52 - Chemistry>Practice Exercise>Q 24
Process of losing electron is known as _____.
EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 52 - Chemistry>Practice Exercise>Q 25
Process of gaining electrons is known as _____.
EASY
RRB NTPC CBT 1
IMPORTANT
Study Package RRBs NTPC For Graduate & Under Graduate Posts ONLINE EXAM (1st Stage) 2019>Chapter 52 - Chemistry>Practice Exercise>Q 26
To prevent rancidity of oil (due to oxidation) in which potato chips are fried, the bags of chips are flushed with the gas.