Question : For a spontaneous process

Option 1: ΔG is +ve

Option 2: ΔG is -ve

Option 3: ΔG is equal to zero

Option 4: ΔH is -ve

Question : What is a brine solution?

Option 1: Excess salt + water

Option 2: Silver

Option 3: Excess ethanol + water

Option 4: Excess starch + water

Question : Which of the following water bodies is closest to the Palk Strait?

Option 1: Mahim Creek

Option 2: Gulf of Mannar

Option 3: Gulf of Khambhat

Option 4: Chilika Lake

Question : If 4 litres of water is evaporated on boiling from 12 litres of salt solution containing 7 percent salt, the percentage of salt in the remaining solution is:

Option 1: 10.5%

Option 2: 11.5%

Option 3: 12%

Option 4: 13%

Question : A tap is dripping at a constant rate into a container. The level L cm of the water in the container is given by the equation L = $2-2^t$, where t is the time taken in hours. What is the level of water in the container at the start?

Option 1: 0 cm

Option 2: 1 cm

Option 3: 2 cm

Option 4: 4 cm