Daily NEET MCQ- July 6, 2022 - NEET MCQ

When aluminium reacts with alkali, that is when one mole of aluminium reacts with two moles of sodium hydroxide in presence of two moles of water two moles of sodium meta aluminate is formed along with three moles of hydrogen. The chemical formula for sodium meta aluminate is Na₂Al₂O₄.

Surface Tension is the tendency of a fluid to occupy least surface area as possible. It is defined as the force per unit distance. So, the spherical shape that is acquired by a water drop is due to surface tension.

Surface Tension is the tendency of a fluid to occupy least surface area as possible. It is defined as the force per unit distance. So, the units of surface tension are Newton/meter in S.I. the system, Dyne/cm in C.G.S system.

The motion of a body in a plane can be defined by using two variables. These are the two defining axes of the Coordinate system, x and y. Once we have the displacement as a function of these to variables, any other quantity can be found out.

Circular motion is an example of motion in a plane. As a circle is a 2-dimensional entity, the body moving in a circle is also moving in a plane. Hence the motion can be termed as motion in a plane.

A rocket moving into space is an example of 3-dimensional motion. Hence, it cannot be out in the category of motion in a plane. Rest all examples of motion in a plane. The truck moving in an infinite spiral is also an example of motion in a plane as spiral is a 2-dimensional entity.

The photosynthesis actually takes place in an organelle called chloroplast. They are found in the cytoplasm of plant cells. The main feature of the chloroplast is that they are able to produce food for plants.

Chloroplast is mainly known as photosynthetic factories. This is because all the reactions based on photosynthesis takes place within the chloroplast. Also, they convert light energy into sugar or glucose in the form of starch.

Matrix is the part which contains all the water-soluble enzymes. Chloroplast encloses a fluid-filled space called stroma and this fluid is called the matrix. These enzymes are stored in the matrix to make it available for dark reactions.

Stroma is the site of dark reaction which is an enzymatic as well as light-independent reaction. Stroma is a colorless fluid that surrounds the grana and thylakoids. It also contains other sub organelles and daughter cells that supports dark reaction.