Chemistry

Which of the following molecules has a linear shape?

A. CH4 B. CO2 C. H2S D. NH3 Correct Answer: Option B B. CO2

6 years ago

A solid substance with high melting and boiling points is likely to be a/an?

A. covalent compound B. dative covalent compound C. electrovalent compound D. non-metal Correct Answer: Option C C. electrovalent compound

6 years ago

The bonds in crystalline ammonium chloride are?

A. covalent and dative B. ionic and covalent C. ionic covalent and dative D. ionic covalent and hydrogen bond Correct…

6 years ago

Which of the following molecules has a triple bond in its structure?

A. CH4 B. NH3 C. N2 D. O2 Correct Answer: Option C C. N2

6 years ago

If X is a group lll element, its oxide would be represented as?

A. X3O2 B. X3O C. X2O3 D. XO3 Correct Answer: Option C C. X2O3

6 years ago

Which of the following elements is a d-block element?

A. Calcium B. lron C. Lithium D. Silicon Correct Answer: Option B C. Lithium

6 years ago

The energy change which accompanies the addition of an electron to a gaseous atom is?

A. atomization B. electron affinity C. electronegativity D. ionization Correct Answer: Option B B. electron affinity

6 years ago

Which of the following statements about chlorine and iodine at room temperature is correct?

A. Chlorine is gas and iodine is solid B. Chlorine is liquid and iodine is gas C. Chlorine and iodine…

6 years ago

Which of the following processes does not involve the use of limestone?

A. Extraction of iron in the blast furnance B. Manufacture of tetraoxosulphate (VI) acid by Contact process C. Production of…

6 years ago

The following substances are ores of metals except?

A. bauxite B. cuprite C. cassiterite D. graphite Correct Answer: Option D D. graphite

6 years ago