A. Strontium
B. Sodium
C. Suphur
D. Magnesium
✅ The correct answer is option A.
Who among the following scientists had discovered Radium?
A. Marie Sklodowska-Curie and Pierre Curie
B. André-Louis Debierne
C. Kasimir Fajans
D. Oswald Helmuth Göhring
✅ The correct answer is option A.
Who among the following had given the Atomic Theory?
A. Benzamin Franklin
B. Madam curie
C. Albert Einstien
D. John Dalton
✅ The correct answer is option D.
Which among the following oxides cause the Acid rain ?
A. Carbon monoxide and carbon dioxide
B. Nitrous oxide and sulphur dioxide
C. Carbon dioxide and nitrous oxide
D. Sulphur dioxide and carbon monoxide
✅ The correct answer is option B.
Which among the following element is an essential constituent of acids?
A. Nitrogen
B. Hydrogen
C. Helium
D. Oxygen
✅ The correct answer is option B.
Highest percentage of nitrogen is found in which among the following fertilizers among the given options?
A. Calcium ammonium nitrate
B. Ammonium nitrate
C. Calcium nitrate
D. Urea
✅ The correct answer is option D.
Which among the following is popularly called Hypo?
A. Silver bromide
B. Silver nitrate
C. Sodium thiosulphate
D. Sodium phosphate
✅ The correct answer is option C.
Which among the following is a Noble Gas?
A. Nitrogen
B. Hydrogen
C. Oxygen
D. Helium
✅ The correct answer is option D.
Which of the following is an anti-knocking compound that has been phased out in many countries so far?
A. Lead tetrachloride
B. Tetra Ethyl Lead
C. Ethyl acetate
D. None of the above
✅ The correct answer is option B.
Which among the following is the main constituent of Biogas?
A. Methane
B. Ethane
C. Propane
D. Butane
✅ The correct answer is option A.