The high boiling point of hydrogen fluoride can be explained in terms of

5 years ago

A. covalent bonds. B. dative bonds. C. dipole-dipole bonds D. electrovalent (ionic) bonds. E. hydrogen bonds. Correct Answer: Option E…

What type of bond holds hydrogen fluoride molecules together when forming larger aggregate?

5 years ago

A. Covalent B. Dative C. Hydrogen D. Ionic E. Metallic Correct Answer: Option C - Hydrogen

If two metallic ions of the same concentration migrate to a graphite cathode; the one that would be preferentially discharged is that with the?

5 years ago

A. greater stability in solution B. lower electrical charge C. smaller mass D. stronger tendency to accept electrons E. stronger…

The rate of a chemical reaction is NOT affected by one of these factors?

5 years ago

A. colour B. concentration C. presence of light D. surface area E. temperature Correct Answer: Option A - colour

The molecular formula of ethylbutanoate is?

5 years ago

A. C2H5COOC2H6 B. C3H7COOC2H7 C. C3H7COOC3H7 D. C3H7COOC4H9 E. C3H7COOC2H5 Correct Answer: Option E - C3H7COOC2H5

Which of the following is a component of the car exhaust?

5 years ago

A. Aluminium B. Calcium C. Iron D. Zinc E. Lead Correct Answer: Option E - Lead

Which of the following will Increase the rate of reaction of Chips of a metal M as shown in the equation below?

5 years ago

M(s)+2HC1(aq) → MCI2 (aq) + H2(g) A. Adding some distilled water B. Decreasing the temperature C. Diluting the hydrochloric acid D.…

What is the colour of phenolphthalein indicator in a basic medium?

5 years ago

A. Blue B. Colourless C. Orange D. Pink E. Yellow Correct Answer: Option D - Pink

Brain tumors can be located by using an isotope of?

5 years ago

A. carbon - 14 B. iodine 131 C. technetium 99 D. uranium235 E. uranium 238 Correct Answer: Option C -…

During the extraction of iron in the blast furnace; slag is produced using?

5 years ago

A. carbon B. crylite C. limestone D. oxygen E. sulphur Correct Answer: Option C - limestone