Passive voice et reported speech en anglais

Transform the following sentences according to the instructions:

1. Convert these sentences into Passive Voice (maintaining the original tense):

• a) 'The laboratory team is developing a new synthetic enzyme ($C_{12}H_{22}O_{11}$ variant).'
• b) 'The engineers had tested the structural integrity of the bridge by $2022$.'

2. Convert this direct speech into Reported Speech (apply proper backshifting):

• 'If the pressure exceeds $5.0 \times 10^5 Pa$, the reaction will fail,' the chemist stated.