Ask a Question

Recent questions without an upvoted answer

0 votes
1 answer 178 views
Which diseases are caused by artificial food colours ?
asked Apr 14, 2022 in Chapter 14 Substances in Common Use by Doubtly (98.9k points)
0 votes
1 answer 125 views
When is said to be the nucleus unstable?
asked Apr 14, 2022 in Chapter 14 Substances in Common Use by Doubtly (98.9k points)
0 votes
1 answer 176 views
What is meant by radioactivity?
asked Apr 14, 2022 in Chapter 14 Substances in Common Use by Doubtly (98.9k points)
0 votes
1 answer 156 views
Match the pairs Saturated brine a. sodium metal free
asked Apr 14, 2022 in Chapter 14 Substances in Common Use by Doubtly (98.9k points)
0 votes
1 answer 167 views
Fill in the blanks .
asked Apr 14, 2022 in Chapter 14 Substances in Common Use by Doubtly (98.9k points)
0 votes
1 answer 186 views
What are the different types of coal? What are their uses.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
0 votes
1 answer 161 views
Practical uses of CO2.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
0 votes
1 answer 192 views
Use of CO2 in the fire extinguisher.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
0 votes
1 answer 187 views
Uses of various allotropes of carbon.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
0 votes
1 answer 181 views
Petrol, diesel, coal are fossil fuels.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
0 votes
1 answer 165 views
Methane is called as marsh gas.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
0 votes
1 answer 203 views
GIve scientific reason Biogas is an eco-friendly fuel.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
0 votes
1 answer 195 views
Give scientific reason Graphite is not used in ornaments.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
0 votes
1 answer 222 views
difference between Diamond and graphite.
asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)
Page:

Doubtly is an online community for engineering students, offering:

  • Free viva questions PDFs
  • Previous year question papers (PYQs)
  • Academic doubt solutions
  • Expert-guided solutions

Get the pro version for free by logging in!

Most popular tags

jeemain geography-10th engineering physics semester 5 web computing

5.7k questions

5.1k answers

108 comments

621 users

Doubtly
...