What are alkaloids?

To travel from 'a' to 'c', what is the distance covered?

• 12.95

• 8.27

• 7.31

• 10.32

Why is it not advisable to store eatables in recycled plastic?

A grafted kidney may be rejected in a patient due to:

• Innate immune response
• Humoral immune response
• Cell-mediated immune response
• Passive immune response

Match the following names with their corresponding types of telescopes:

Two spherical conductors A and B, having equal radii and carrying equal charges within them, repel each other with a force F when placed apart at some distance. A third uncharged spherical conductor, having the same radii as conductor A, is brought in contact with A and then with B, and finally removed away from both. The new force of repulsion between A and B is:

The water boils when:

1. Saturated vapor pressure of water becomes equal to atmospheric pressure
2. Boiling point of water becomes more than atmospheric pressure
3. Saturated vapor pressure of water is less than atmospheric pressure
4. Vapor pressure of water becomes more than atmospheric pressure

Name the most common religion in South America.

• Option 1: Hinduism
• Option 2: Christianity
• Option 3: Buddhism
• Option 4: Jainism

Which of the following statements are true about the permanent settlement of Bengal?

• i) It happened during the time of Warren Hastings

• ii) Under the settlement, zamindars and their successors were recognized as the owners of the land.

• a) i only

• b) ii only

• c) both are true

• d) none of the above

Layer of wastes in a vermicomposting pit is kept moist and loose. The correct reason for it would be:

• To allow worms to move
• To allow gases to release
• NOT to allow sufficient air and moisture
• NOT to decompose the garbage

Covalent polymeric hydride among the following is:

• (A) $\mathrm{CaH}_{2}$

• (B) $\mathrm{SrH}_{2}$

• (C) $\mathrm{BeH}_{2}$

• (D) $\mathrm{BaH}_{2}$

Which are the two important epics of India?

• Ramayana and Mahabharata
• Kiratarjuniya and Mahabharata
• Jataka Tales and Panchatantra
• Ramayana and Panchatantra

The object through which light passes partially is called an object.

• a transparent

• a translucent

• an opaque

The term 'hormone' was first coined by ____________.

Which gas is evolved when acids react with metal carbonates?

• A. $\mathrm{CO}_{2}$

• B. $\mathrm{H}_{2}$

• C. $\mathrm{NH}_{3}$

• D. $\mathrm{O}_{2}$

Tina is watching a movie on people who used to live in the past. She observes that many people in the movie moved to different places even though travel was difficult back then.

Which of the following reasons could people have for travelling in the past?

• Adventure

• To settle in different places

• For trading

• Religious purposes

Why does Bromobenzene not react with aq. NaOH?

From the following options, only 46 can be a term of an Arithmetic Progression (AP) whose first term is 2 and the common difference is 4.

1. 23

2. 69

3. 46

4. 92

Which among the following statements is NOT correct?

A Hydra is a triploblastic organism.

B In radial symmetry, we can cut the organism through any plane.

C Sponges are an example of animals with an asymmetric body.

D Humans have bilateral symmetry.

When an object is thrown in a vertically upward direction, the final velocity is 0.