Explanation

Caffeine occurs naturally in the tea plant,

Camellia sinensis, so all brewed tea contains some caffeine. 

Tea leaves contain 3.5% caffeine,

while

Coffee beans have 1.1–2.2%.

Explanation

The most stable metals, such as gold and platinum, do not corrode easily

because they do not lose electrons easily.

while

Metals placed higher in the reactivity series, such as iron, zinc, etc., get corroded very easily

Explanation

Sunlight is composed of the following seven colours:

1.       Violet

2.       Indigo

3.       Blue

4.       Green

5.       Yellow

6.       Orange

7.       Red

Explanation

Explanation

Isotope of Hydrogen:

Tritium (symbol ³H) is one of the three isotopes of hydrogen. 

Composition:

Its nucleus contains one proton and two neutrons. 

Instability:

The nucleus is unstable and decays by beta decay into helium-3, a stable isotope of helium. 

Radioactivity:

It is a radioactive material with a half-life of approximately 12.3 years. 

Production:

Tritium is produced naturally in the upper atmosphere by cosmic rays and also as a byproduct in nuclear reactors and nuclear weapons.

Explanation

Torque is a vector quantity.

The direction of the torque vector depends on the direction of the force on the axis

Explanation

A semiconductor with a large value is called a wide-band-gap semiconductor

Light emitting diode is a 2-lead semiconductor device. 

The name semiconductor comes from the fact that these materials have electrical conductivity between a metal, like copper, gold, etc., and an insulator, like glass.

They have an energy gap of less than 4eV (about 1eV).

Explanation

The Prime Minister is the Chief Executive who heads and exercises the authority of the Government of Pakistan.

After obtaining a vote of confidence, the Prime Minister is invited by the President to take the oath of office and form the government.

Term 5 years.

Explanation

Know about FIFA World Cup 2018

Edition: 21

Held: 14 June to 15 July 2018

Hosted by: Russia

Winner: France

Runner-up: Croatia

Best player of tournament: Luka Modric (Croaita)

Most goals: Harry Kane (United Kingdom)

Title of Best goalkeeper won by: Thibaut Courtois (Belgium)

Iceland & Panama participated: first time

Official song: Go for it

Best Young Player of tournament award: Kylian Mbappe (France)

Official Mascot: Zabivaka (Wolf)

Total venues: 12

Total goals scored: 169

France scored in final: 4

Final played: Luzihinki (Moscow)

Played in Russian cities: 11 cities

****

Currently played FIFA World Cup 2022 

• Edition: 22
• Held: 20 November 18 December 2022 (Qatar)
• Matches: 64
• Length: 28 days
• Winner: Argentine

Question is updated on 23 July 2023

NA23-7-2023

Explanation

ASEAN (Association of Southeast Asian Nations) is a regional organization, not a UN body.

ILO (International Labour Organization), Security Council, and WHO (World Health Organization) are all directly associated with the United Nations.