Which one of the following is not a mixture?

Give the common name for the following compound \( (\mathrm{CH}_3)_2\ \mathrm{CH}\ \mathrm{CH}_2-\mathrm{Br} \)

A 'breath test' used by traffic police to check drunken driving uses?

Which of the following are chemical changes? I. cooking of food II. digestion of food III. freezing of water IV. water is heated up

The scientist who stated that matter can be converted into energy is?

What is the chemical name for the compound \( \mathrm{CuCO_3} \)?

What is the IUPAC name for the following compound? \( \mathrm{HC} \equiv \mathrm{CCH}_3 \)

The enzyme that converts glucose to ethyl alcohol is?

Which of the following is a non-metal that remains liquid at room temperature?