Studying doesn’t have to feel like a slog. The truth is: your brain isn’t built to drag through hours of tedium—it responds best to pattern, reward and rhythm. By shifting how you approach study time, you can turn it from duty into something your brain actually enjoys. Here are five simple, smart ways to do it. Try one today and see how your focus follows. 1. Study in Short Bursts, Not Endless Sessions Forget the idea that you must sit for three hours straight. Cognitive science shows our attention drops significantly after about 25–30 minutes. So use the Pomodoro Technique : study for 25 minutes, take a 5‑minute break; after four rounds, give yourself a longer break (15–20 minutes). That rhythm gives your brain permission to reset—and makes that “next block” easier to start. 2. Turn Learning into a Game The brain loves victory—even tiny ones. Set fun micro‑challenges: finish chapter one in 20 minutes, get 10 questions right in a row, or beat yesterday’s time. E...
Question C and D are samples of two different simple salts. Carry out the following exercises on them. Record your observations and identify any gases evolved. State the conclusion you draw from the result of each test. A) Heat about one half of C in dry test tube until no further change is observed. Allow to cool B) (I) to the cooled residue from (a) above, add about 5 cm 3 of dilute hydrochloric acid and warm. (II) to about 2cm 3 of the clear solution from (b)(I) above, add aqueous ammonia in drops until it is excess. C) Put all D in a boiling tube and add about 10 cm 3 of distilled water. Shake thoroughly and divide into two portions. D) (I) to the first portion from (C) above, add about 2 cm 3 of barium chloride solution, followed by dilute hydrochloric acid in excess. Warm the mixture. (II) to the second portion from ( C) above, add 2 to 3 drops of acidifie...