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Most viewed questions under tag chemicals

+1 vote
0 answers
What is the term for the conversion of a solid directly into a vapour by applying heat?
posted Jan 30, 2017 by Manish Tiwari
  • conversion
  • chemicals
0 votes
0 answers
What solvent is used in permanent marker?
posted Nov 2, 2017 by Jordan White
  • chemicals
  • science
  • things
0 votes
1 answer
What is used in fireworks and flares to give off a brilliant red light?
posted Feb 26, 2019 by Vishal
  • chemicals
  • fire works
0 votes
1 answer
H2SO4 is the chemical symbol for what?
posted Jan 3, 2017 by Mohammad
  • chemicals
+2 votes
2 answers
What is Diesel Exhaust Fluid and what are its components?
posted Jun 5, 2015 by Anamika
  • chemicals
+1 vote
1 answer
What is Syn Gas (synthesis gas) and what is its use?
posted Mar 8, 2016 by Vikash Singh
  • chemicals
  • gas
+1 vote
1 answer
What colour does blue litmus paper turn when in contact with acid?
posted Oct 13, 2023 by Ritika
  • chemicals
+1 vote
1 answer
Chloramine T trihydrate is a reagent commonly used in what?
posted Aug 24, 2020 by Sandeep Otari
  • chemicals
0 votes
0 answers
Can you use gold leaf on rose?
posted Jan 3, 2019 by anonymous
  • chemicals
  • floristry
  • flower
  • gold
0 votes
What chemical, found in many living organisms, is this compound of carbon, hydrogen and nitrogen, C5H9N3? [MCQ]
posted Jul 10, 2018 by Vikram Luthra
  • chemicals
  • organism
+1 vote
1 answer
What is the most noticeable reaction when sodium is put into water?
posted Mar 15, 2022 by Nimish
  • chemicals
0 votes
What chemical is mostly used in match heads? [MCQ]
posted Jul 13, 2018 by Vishal
  • chemicals
0 votes
The smell of hydrogen sulfide is usually compared with which of these? [MCQ]
posted Oct 10, 2018 by Alok Dev
  • chemicals
+2 votes
0 answers
Which chemical produced the green flames in fire works?
posted Apr 26, 2016 by Aarati Mahajan
  • chemicals
  • fireworks
0 votes
1 answer
What are the features of enzymes?
posted Aug 18, 2020 by Nkrumah Solomon
  • chemicals
+1 vote
1 answer
What is the common name for acetyl-salicylic acid?
posted Dec 16, 2020 by Vishal
  • chemicals
0 votes
0 answers
What are the main constituents of pearls?
posted May 5, 2016 by Varun Kumar
  • chemicals
0 votes
0 answers
If a chemical process is anaerobic it means it is happening under what conditions?
posted Nov 19, 2018 by Pankaj Deshmukh
  • chemicals
0 votes
0 answers
What is the effect of mixing manganese dioixide with hydrogen peroxide?
posted Sep 17, 2018 by Harshita Dhaliwal
  • chemistry
  • chemicals
0 votes
0 answers
Which clear hard plastics is a markedly poor barrier to oxygen and water vapour?
posted Mar 6, 2019 by Pankaj Deshmukh
  • chemicals
+1 vote
1 answer
Which causes Ground Level Ozone ?
posted Jun 5, 2015 by Kapil Kapoor
  • chemicals
+1 vote
0 answers
As per latest study , which amino acid can prevent formation of dental plaque ?
posted Jun 1, 2015 by Rahul Vaidya
  • health
  • chemicals
  • research
+1 vote
0 answers
The chemical messenger that transports signals from one cell to another, called phytohormones in plants, are............
posted Nov 7, 2016 by Nimish
  • chemicals
  • animal
+1 vote
1 answer
What is traditionally added to sulphur and saltpetre to make gunpowder?
posted Mar 21, 2023 by Tapesh Kulkarni
  • chemicals
+1 vote
0 answers
In 1847, obstetrician James Young Simpson, head of midwifery at Edinburgh Hospital, first used what anaesthetic?
posted Jul 20, 2015 by Prachi Sharma
  • international
  • chemicals
  • health
+1 vote
1 answer
What chemicals are used to transmit messages to other animals of the same species?
posted Oct 11, 2021 by Mohammad
  • animal
  • chemicals
+1 vote
1 answer
What colour are copper sulphate crystals?
posted Jun 1, 2021 by Riteshwar
  • chemicals
  • colour
+1 vote
1 answer
In July 2009, why did Russian physicists begin trying to synthesize Ununseptium?
posted Jun 2, 2022 by Harshita Dhaliwal
  • chemicals
0 votes
0 answers
Can a dry mouth be cure? How
posted Jan 22, 2019 by Karang Agouda
  • chemicals
+1 vote
1 answer
What is another name for caustic soda?
posted May 18, 2023 by Prithvi
  • chemicals
+1 vote
1 answer
What is a mixture of saturated aliphatic and alicyclic C7 to C12 hydrocarbons with a maximum content of 25% of C7.......
posted Jan 3 by Aarati Mahajan
  • chemicals
+1 vote
1 answer
Aspartame is a chemical used as what?
posted Jan 4 by Aastha Joshi
  • chemicals
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