Question Discussion & Solution

Jail must have Lock other options are not necessary part of jail. There can be or cannot be prisoner in jail. Rods are not necessary jail can be a room even Jailor is not always necessary.

The correct answer is Boiling point increases.

Key Points

• When salt is added to water the boiling point of the solution increases.
• Water boils when the molecules can overcome the vapour pressure of the surrounding air to move from liquid to gaseous phase.
• Salt dissolves in water because the covalent bond of water is stronger than the ionic bond in salt.
• NaCl easily dissociates into positive (Na+) and negative (Cl–) ions and these ions get surrounded by negative and positive charged sides of the water molecule.
• This affects the intermolecular attraction in water and the amount of energy required for the transition from liquid to vapour phase increases.

Additional Information

• Elevation in the boiling point refers to a condition where the temperature at which a solvent vaporizes is upraised.  
• This phenomenon is a result of the introduction of a non-volatile solute is to the pure solvent.
• The non-volatile solute on adding to the pure solvent disturbs the molecular interaction between the solvent molecule. 
• This reduces the capability of the solvent molecule to transform from the liquid phase to the gaseous phase. The vapour pressure of the solvent is brought down. 
• Thus more energy is required to vaporize the solvent. This energy is provided in the form of an increase in temperature.

The correct answer is Ficus benghalensis.

• The botanical name of the banyan tree is Ficus benghalensis.

Additional Information

• Azadirachta indica is the botanical name of Neem Tree.
• Ficus religiosa is the botanical name of the fig tree.
• Ocimum tenuiflorum is the botanical name of holy basil.

The correct answer is New Delhi.

• The "Indian Sports Summit - Fitness: $ 10 Billion Opportunity" was organized in New Delhi.

Key Points

• The event was launched by Prime Minister Narendra Modi.
• The aim event was focused on driving objective of ‘Sports and Industry’ by various initiatives, advocating for new policies for the sector, encourage investments in the sector of sports, create a roadmap in encouraging fitness programmes in school education and industry participation in the FIT INDIA Movement.
• Current Youth Affairs and Sports Minister is Mr Kiren Rijiju.

The logic is:

Starting from 3 in the clockwise direction:

3 × 2 - 1 = 5

5 × 2 - 2 = 8 

8 × 2 - 3 = 13

13 × 2 - 4 = 22

Similarly, 

22 × 2 - 5 = 44 - 5 = 39

Hence, 39 is the correct answer.