Chemistry

Graphite and Diamond are similar in that they?

A. have octahedral shape B. have same density C. form carbon(IV) oxide on combustion D. conduct electricity Correct Answer: Option…

6 years ago

A 0.1moldm−3 solution of sodium hydroxide was diluted with distilled water to 0.001moldm−3. What is the dilution factor?

³A. 1000.00 B. 100.00 C. 10.00 D. 0.01 Correct Answer: Option D B. 100.00 Explanation Dilution factor = molar conc.…

6 years ago

Which of the following statements about endothermic reaction is correct?

A. Activation energy is high B. A catalyst is required C. It occurs reversibly D. Heat energy is absorbed Correct…

6 years ago

The use of diamond in abrasives is due to its?

A. high melting point B. hardness C. octahedral shape D. durability Correct Answer: Option B B. hardness Explanation Diamonds are…

6 years ago

The properties of a good primary standard include the following except?

A. high molecular mass B. low molecular mass C. high degree of purity D. readily available Correct Answer: Option B…

6 years ago

The bond angle in tetrahedral molecules such as tetrachloromethane is?

A. 180.0° B. 109.5° C. 105.5° D. 90.0° Correct Answer: Option B B. 109.5°

6 years ago

Which of the following statements is correct __________?

A. Covalent compounds would readily ionize in solution B. Covalent compounds consist of ions C. Hydrogen bond is formed between…

6 years ago

The ionization energy is affected by the following factors except?

A. distance of the outermost electron(s) from the nucleus B. size of the positive nuclear charge C. ability to attract…

6 years ago

Which of the following substances does not have van der Waals’ forces?

A. Copper B. Graphite C. Neon D. Iodine crystals Correct Answer: Option A A. Copper

6 years ago

Which of the following substances does not have van der Waals’ forces?

A. Copper B. Graphite C. Neon D. Iodine crystals Correct Answer: Option A A. Copper

6 years ago