Daily NEET MCQ- March 3, 2022 - NEET MCQ

Rutherford was the form to measure the size of the nuclei of an atom by 1911. He discovered that these were about 10⁴ times smaller than the atoms that constituted them and this was due to the fascinating way that the alpha particles scattered from metal foils.

Fructose is a monosaccharide that consists of six carbon atoms including a carbonyl carbon of a keto group within its chain. Glucose, galactose and mannose are examples of aldohexoses.

The rate at which solar energy is converted and stored by the producers per unit area over a time period is called primary productivity. The solar energy is converted into usable form by plants with the help of photosynthesis.

Arabinose consists of an aldehydic group (CHO) at the end of its chain which has a total of five carbon atoms (including the CHO group), hence it is an aldopentose. Xylulose, ribulose and sorbose are examples of ketoses.

Productivity is the rate of new biomass production by an individual, population, community within an ecosystem. The productivity of an ecosystem depends on several environmental factors such as light, water, temperature, precipitation, etc.

The valence electron in an alkali metal is an s-electron. Generally, they make up Group 1 of the periodic table. The different examples that come under this category are lithium, potassium, and francium.

All the compounds mentioned are monosaccharides with the formula C₆H₁₂O₆. However, allose, mannose, gulose, talose and idose are aldohexoses. Sorbose, tagatose and Psicose are aldoketoses.

The gross primary productivity is designated by GPP. The rate of production of organic matter during photosynthesis is defined as the gross primary productivity.

The perpendicular distance between the path of a projectile and the center of the potential field is the impact parameter. Therefore, for a head-on collision of the α-particle with a nucleus, the impact parameter is equal to zero.

On treatment with Br₂ water, glucose gets oxidised to gluconic acid (which is a six-carbon carboxylic acid). This indicates that the carbonyl group is present as an aldehyde group.