Select the option which gives correct function and /or characteristic: of the four parts of human respiratory system.

A gas is evolved when Dil. Sulphuric Acid reacts with Zinc granules. It gives a pop sound when lit match stick is introduced near it. Identify the gas?

Identify the product which represents the solid state in the above reaction.

In the given transverse section of the leaf identify the layer of cells where maximum photosynthesis occurs.

Observe the three figures given below. Which of the following depicts tropic movements appropriately?

Receptors are usually located in sense organs. Gustatory receptors are present in

NalinI draws a ray diagram for an object in front of a concave mirror. She draws a ray starting from the top of the object and falling on the mirror perpendicularly. The ray after reflection will

A convex lens has a focal length of 10 cm. The object of height 2 mm is placed at a distance of 5 cm from the pole. Find the height of the image.

In the neutralization reaction when excess of acid is added to an alkali, salt and water are produced. What is the nature of the solution after the reaction occurs?

A prism ABC (with BC as a base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in below Figure. In which of the following diagrams, after dispersion, the third colour from the top of the spectrum corresponds to the colour of the sky?