Answers The type of chemical bond that exists between potassium and oxygen in potassium oxide is The type of chemical bond that exists between potassium and oxygen in potassium oxide is A. ionic B.… Read More
Answers Which of the following contains co-ordinate covalent bond? Which of the following contains co-ordinate covalent bond? A. HCI B. CH 4 C. NH4 D. Na+CI Correct… Read More
Answers An element Z has a combining power of 3. Which of the following formulae is… An element Z has a combining power of 3. Which of the following formulae is correct of its… Read More
Answers Electrovalent compounds are characterized by Electrovalent compounds are characterized by A. solubility in ethanol B. high molar mass C. high melting point D.… Read More
Answers The atoms of four elements are represented as 20Q, 16R, 10S and 8T Which of… The atoms of four elements are represented as 20Q, 16R, 10S and 8T Which of the elements would… Read More
Answers Chlorine atom forms CI by Chlorine atom forms CI by A. losing one electron B. Sharing one electron C. Donating lone pair of… Read More
Answers Environmental pollution problems are generally more severe in countries which have Environmental pollution problems are generally more severe in countries which have A. dense population B. low birth rate… Read More
Answers The greenhouse effect is a climatic condition associated with the presence of excess The greenhouse effect is a climatic condition associated with the presence of excess A. carbon (IV) oxide B.… Read More
Answers Geometric (cis-trans) isomerism is exhibited by Geometric (cis-trans) isomerism is exhibited by A. C 2H 2CI 2 B. CH2CI5 C. C 4H 10 D.… Read More
Answers Which of the following is needed to produce slag during the extraction of iron in… Which of the following is needed to produce slag during the extraction of iron in the blast furnace?… Read More