Multiple choice

Which row shows the structure of ³⁷Cl^- ?

B

What determines the order of elements in the periodic table?

C

What is the number of oxygen atoms in 176.0g of CO₂?

D

0.48g of element X, reacts with 0.0200mol Cl₂ to form chlorine with the formula XCl_4.

What is element X?

D

What is the correct formula for ammonium sulphate?

B

Which statement is correct?

D

Which element has atoms with the greatest number of singly occupied orbitals?

A

Successive ionisation energies of 4 elements in period 3 are shown below?

B

What is the shape around the carbon atoms in graphene?

D

Which compound has polar molecules?

A

What is the volume of 0.0100mol of N₂ at 350^oC and 200kPa?

B

Which compound is unsaturated, alicyclic and contains an alkyl group?

C

Which are the correct oxidation numbers for the O atoms in these compounds?

CaO and H₂O₂

D

What volume of gaseous product at RTP is formed when 4.00g of hydrogen gas, also at RTP, is burnt in pure oxygen?

B

Which statement is correct?

B

C

What is the name of the compound below?

A

Which substance contains polar molecules?

C

A student carried out an experiment to measure the enthalpy change of combustion of methanol. The energy from the combustion of methanol was used to heat a beaker containing water. The student’s calculated enthalpy change of combustion was more exothermic than the value in the data books.

What error could have made this difference?

B

A section of a polymer is shown below.

Which monomer could form this polymer?

C

Which compound could have produced the infrared spectrum?

B

What is the standard enthalpy change of combustion?

B

The reversible reaction below is at equilibrium

B

What is the volume of 0.0100mol of N₂ at 350^oC and 200kPa?

B