Questions

Central Processing Unit (CPU) is the brain of any computer system.

The order of basicity in ammonia is different in gaseous phases vs. aqueous phases due to hydrogen bonding.

So in gaseous phases it's the well known: 3' > 2' > 1'> NH3. Just so we're on the same page, this is due to the inductive effect of electron donating alkyl groups--they destabilize the lone pair on nitrogen atom, making nitrogen more basic.

But in aqueous phase, the order is slightly different: 2'> 1'> 3' > NH3.

Virgil and Horace were the famous Roman poets.

Tacitus and Plinky were the famous Roman historians.

Marcus was a Roman Philosopher.

Answer : F

Explanation :     In each group of 3 boxes, calculate the difference in numerical values between the top two letters, and add 1 to give the value of the letter in the lower box