Chemistry - 03

Chemistry [Science] plays a major role for candidates preparing for competitive exams like University Assistant. Get instant Questions of Science - Chemistry from here. Kerala PSC Helper is a one source destination for all Chemistry to crack competitive exams conducted by Kerala Public Service Commission.
21. Which is most important green house gas?
Answer :- Carbon dioxide

22. Which has is used to produce soda water?
Answer :- Carbon dioxide

23. Which gases are constituents of the Ammonia gas?
Answer :- Nitrogen and Hydrogen

24. Which chemical is known as Hypo?
Answer :- Sodium Thiosulfate

25. Which chemical is the most common photographic fixer?
Answer :- Hypo

26. What is added to reduce the acidity of the soil?
Answer :- Lime

27. The chemical used to reduce the alkaline nature of the soil is ...........
Answer :- Aluminium Sulphate

28. What is the optimum soil pH range for the most plants?
Answer :- 6 to 7.5

29. What turns blue litmus paper into red?
Answer :- Acid

30. Red litmus paper turns blue under ....... Conditions.
Answer :- Basic (Alkaline)

---

Kerala PSC University Assistant Examination Questions, Kerala PSC University Assistant Expected Questions, Kerala PSC University Assistant GK Questions, Kerala PSC University Assistant Science Questions, Kerala PSC University Assistant History Questions, Kerala PSC University Assistant Ecnomics Questions, Kerala PSC University Assistant Renaissance in Kerala Questions, Kerala PSC University Assistant Fact About India Questions, Kerala PSC University Assistant Fact About Kerala Questions, Kerala PSC University Assistant IT Questions, Kerala PSC University Assistant Social Welfare Scheme Questions