Answer:
Explanation:
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Answer : B) In step 2, there was a chemical change which was observed in sugar.
Explanation : In A step 2 there was a physical change that was seen. By just boiling the dissolved salt solution salt was obtained. Therefore, it is a physical change. In B step 2 there was a chemical change seen as sugar solution was thickened and turned brown. It was not obtained in its original form; there was a chemical reaction that took place during sugar evaporation. As chemical change is the one where the reaction is irreversible.
Therefore only in B step 2 there was a chemical change that was observed.
They have 2 lone pairs and 3 bond pairings. Sp3D hybridization has been achieved in the core atom. The molecule is trigonally bipyramidal or T-shaped.
<h3>What is the name of T-shaped molecular geometry?</h3>
- They have 2 lone pairs and 3 bond pairings. Sp3D hybridization has been achieved in the core atom. The molecule is trigonally bipyramidal or T-shaped.
- At a 90° angle from the equatorial orbitals, two orbitals are placed along the vertical axis. The orbitals are trigonal bipyramidal in form. Lone pairs of electrons are present in two of the equatorial orbitals. The three atoms are positioned around the core atom to create a T-shaped molecule.
- T-shaped skills are a particular set of attributes that add value to an employee. A person with a T-shape has outstanding knowledge and skills in a certain field, and they excel at collaborating with others.
To learn more about T-shaped refer to:
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False
Explanation:
All the time particles are not at rest. Because in different types of matter particles act differently.
In liquid, particles are connected to each other but not they move in different directions.
In solid, particles are tightly connected to each other, there are no gap between them.
Lastly, in case of gas, particles move randomly here and there.
So, we conclude that particles are not always in state of rest.
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