Correct Answer: –CHO

Solution : The correct answer is -CHO.

The chemical formula of an aldehyde group is -CHO. The general formula for an aldehyde is RCHO. It is a functional group that contains one carbonyl group, one hydrogen and one R group attached to a carbonyl carbon

Correct Answer: Potassium – Po

Solution : The correct answer is Potassium – Po.

The pair with an incorrect chemical symbol is "Potassium-Po". The correct symbol for potassium is K, not Po. Phosphorus is represented by P, iron by Fe and iodine by I, and these are accurate chemical

Correct Answer: Dr. Homi Jehangir Bhabha

Solution : The correct answer is Dr. Homi Jehangir Bhabha.

In February 1939, Homi Jehangir Bhabha published a short paper in Nature Journal proposing the name meson. Bhabha's name remains in use to this day and is used to describe a class of

Correct Answer: INR 65

Solution : Increment in May = INR 65
Increment in June = INR 55
Increment in July = INR 75
Average = $\frac{\text{Increment in May + June + July}}{3}=\frac{65+55+75}{3}=\frac{195}{3}= 65$
Hence, the correct answer is INR 65.

Correct Answer: 16.76

Solution : Area of coloured sector = $\frac{120}{360}×\pi×r^2$
= $\frac{1}{3}×\frac{22}{7}×4^2$
= $\frac{22}{21}×16$
= 16.76 cm²
Hence, the correct answer is 16.76.

Correct Answer: Atharvaveda

Solution : The correct answer is Atharvaveda.

The Atharvaveda encompasses mantras on gnana (knowledge), karma (deeds) and Upasana (invocation). It is a crucial historical document for Indian science. It includes spells and charms widely used by people, shedding light on their beliefs. Some mantras aim for success,

Correct Answer: 346.5 cm²

Solution : Let the radius of the circle be $r$ cm.
Perimeter of quadrant = $2r+\frac{1}{4}\times 2\pi r$
So, $2r+\frac{1}{2}\pi r=75$
⇒ $r(2+\frac{11}{7})=75$
⇒ $r=\frac{75\times 7}{25}$
⇒ $r=21$ cm
Area of quadrant = $\frac{1}{4}\pi r^2$
= $\frac{1}{4}\times \frac{22}{7}\times 21^2$
= 346.5 cm²
Hence, the

Correct Answer: 183

Solution : Given:
A denotes +, B denotes ×, C denotes −, and D denotes ÷
11 B 12 C 144 D 24 A 57 =?

After replacing the letters with the mathematical signs, we get:
= 11 × 12 – 144 ÷ 24 + 57
=

Correct Answer: At a loss or perplexed

Solution : The correct choice is the third option.

Explanation: The idiomatic expression at sea is used to describe a state of confusion or being perplexed. It is not meant to be taken literally, referring to the condition of being lost or

Correct Answer: Indian Civil Services

Solution : The correct answer is Indian Civil Services.

In 1886, the Aitchison Commission was appointed to recommend reforms in the Indian Civil Services. Lord Dufferin, the Viceroy of India from 1884 to 1888, appointed the Public Service Commission under Aitchison, later named the Aitchison