Explanation

Silicon is not the conductor

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Aluminum and gold are metals so they are good conductors of electricity.

Now graphite is an allotropic form of carbon and is the only nonmetal that can conduct electricity.

Silicon is a semiconductor. 

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VU LDC UDC FIA PAPER 27-12-2021

Explanation

Ice appears white when it contains trapped air bubbles and minerals.

As these things freeze, gases are released, creating air bubbles and causing ice to shrink on occasion.

Explanation

The process by which a substance changes from the solid phase to the liquid phase is known as melting.

Explanation

• Carbon chains make up the skeleton of compounds called In-Organic Compound
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• The chemical formula of carbon dioxide is CO2
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• The molar mass of carbon dioxide is 44.01 g/mol
• The boiling point of carbon dioxide is: -78.46 °C
• The triple point temperature of carbon dioxide is: -56.6 °C
• the carbon dioxide is Soluble in Water
• Classification of carbon dioxide is: Acidic oxide

Explanation

pair of bio-elements represents the maximum and minimum percentage

• Hydrogen 62.9%
• Oxygen 24%
• Carbon 12%
• Nitrogen 0.6%
• Calcium 0.24%
• Phosphorus 0.14%

Explanation

6 Bio-Elements constituent 99% of the total human body

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6 Bio=Element are:

• Hydrogen
• Oxygen
• Carbon
• Nitrogen
• Calcium
• Phosphorus

Explanation

 At a safe distance park in a hazardous chemical incident

Explanation

The first evidence of helium was observed on August 18, 1868

 as a bright yellow line with a wavelength of 587.49-nanometers in the spectrum of the chromosphere of the Sun.

The line was detected by French astronomer Jules Janssen during a total solar eclipse in Guntur, India.

Explanation

Every living thing is made up mostly of water. Water is the most abundant substance in living organisms, making up approximately:

- 55-60% of an adult human's body weight

- 70-80% of a plant's weight

- 70-90% of an animal's weight

Water is essential for many biological processes, including:

- Regulating body temperature

- Transporting nutrients and oxygen

- Removing waste products

- Maintaining cell shape and structure

Water is truly the foundation of life!

Explanation

Elements can be classified as metals, metalloids, and nonmetals.