The nucleus of an atom contains
The nucleus of an atom contains A. protons only B. neurons only C. protons and electrons D. neutrons…
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Which of the following is not a member of the homologous series of the paraffins…
Which of the following is not a member of the homologous series of the paraffins (alkanes)? A. C3H8…
When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is…
When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is called A. ionic…
Which of the following gases may not be dried with concentrated sulphuric acid?
Which of the following gases may not be dried with concentrated sulphuric acid? A. HCl B. N2 C.…
Which of the following reactions does not take place in the smelting of iron in…
Which of the following reactions does not take place in the smelting of iron in a blast furnace?…
If 30cm3 of oxygen diffuses through a porous pot in 7 seconds, how long will…
If 30cm3 of oxygen diffuses through a porous pot in 7 seconds, how long will it take 60cm3…
Brass and bronze are both metallic alloys. Which of the following constituents is common to…
Brass and bronze are both metallic alloys. Which of the following constituents is common to both alloys? A.…
The reaction between an organic acid and an alcohol in the presence of an acid…
The reaction between an organic acid and an alcohol in the presence of an acid catalyst is known…
The IUPAC names of the compounds CH3COOH and CH2=CH2 are respectively;
The IUPAC names of the compounds CH3COOH and CH2=CH2 are respectively; A. acetic acid and ethene B. methanoic…
A sample of hard water contains some calcium sulphate and calcium hydrogen carbonate. The total…
A sample of hard water contains some calcium sulphate and calcium hydrogen carbonate. The total hardness may therefore…