SSS Three 2nd Term 2024/25

200cm3 of HCl contains 0.6g of dissolved hydrogen chloride. Calculate the concentration of the acid in g/dm3.

• 0.2g/dm3

• 3g/dm3

• 0.6g/dm3

• 2g/dm3

The subatomic particle that revolves around the nucleus of an atom in a circular path is

• Proton

• Neutron

• Electron

• Quarks

Which of the following is an allotrope of carbon?

• Amethyst

• Graphite

• Haematite

• Moscovium

How many carbon atoms are present in heptane?

• 4

• 5

• 6

• 7

Which of the following compounds shows resonance?

• C2H4

• C6H6

• C2H6

• CH4

One of these is used to convert alcohols into aldehydes

• KMnO4

• Pyridinium chloro chromate

• H2O2

• Lindlar's catalyst

The correct IUPAC name of the compound CH3-CH2-CH(Cl)-CH3 is

• 1-chloro-3-methylbutane

• 2-chloro-3-methylbutane

• 2-chlorobutane

• 2-chloropentane

Which quantum number determines the shape of an orbital?

• Principal (n)

• Azimuthal (l)

• Magnetic (m)

• Spin (s)

The hybridization of the carbon atom in CH3+ is

• Sp

• Sp2

• Sp3

• SP3d

The electron configuration of Cr(chromium), atomic number is 24, is

• [Ar]4S23d4

• [Ar]4S13d5

• [Ar]4S23d6

• [Ar]4S°3d6