Daily NEET MCQ- September 8, 2022 - NEET MCQ

The molecule NH₃ has a lone pair and 3 bond pairs. As we know that the repulsion order is as follows: Lone pair-Lone pair is greater than Lone pair-Bond pair is greater than Bond pair-Bond pair. So the shape of molecule NH₃ is trigonal pyramidal, where the lone pair is away from the 3 bond pairs.

The concept of mixing of atomic orbitals and formation of new hybridized atomic orbitals for the pairing of electrons through chemical bonds. Therefore sp³d hybridization included 5 orbitals namely 1 s-orbital, 3 p-orbitals, and 1 d-orbital.

A double bond is formed chemically between two atoms that involve the bonding of four electrons. A double bond is formed with one sigma and one pi bond. The formation of molecules like ethane, oxygen involve double bonds.

The first law of motion states that a body remains in the state of motion or in the state of rest until and unless an external force is applied on it. Hence, the answer is force. This is also known as the law of inertia.

When the bus stops, the people sitting in it experience a jerk. This is because, while the bus was moving, the people were moving with it. Hence, they were having an inertia of motion. When the bus stops, the inertia of the bus changes from that of motion to that of rest. But the inertia of the people still remains that of motion. Hence, they experience a jerk.

When the car starts, the people sitting in it experience a jerk. This is because, while the car was stationary, the people were stationary with it. Hence, they were having an inertia of rest. When the car starts, the inertia of the car changes from that of rest to that of motion. But the inertia of the people still remains that of rest. Hence, they experience a jerk.

Myasthenia gravis is an autoimmune disorder which affects neuromuscular junctions. It leads to various degrees of weakness in skeletal muscles. The onset of myasthenia gravis can be sudden.

Myasthenia gravis is an autoimmune disorder of the muscular system which affects neuromuscular junctions. Crohn’s Disease, Celiac Disease and gastroenteritis are disorders of the digestive system.

Myasthenia gravis is an autoimmune disorder which affects neuromuscular junctions. It leads to various degrees of weakness in skeletal muscles. The onset of myasthenia gravis can be sudden.

Myasthenia gravis is an autoimmune disorder which affects neuromuscular junctions. It leads to fatigue, muscle weakness and paralysis of skeletal muscles. Rapid spasms are a result of tetany.