Explanation

Bismuth is the only pure metal that expands when it solidifies (freezes).

Most substances contract on solidification, but bismuth behaves unusually—its solid form occupies a slightly larger volume than its liquid form.

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Explanation

The largest planet in our solar system is Jupiter.

Additional information:

• It is the 5th planet in our solar system.
• The planet in the solar system with the maximum number of moons is Jupiter.
• Jupiter has 79 known moons.
• The Great Red Spot is a prominent feature of Jupiter.
• It is the giant planet and the fastest-rotating planet in our solar system.
• It rotates approximately once every 10 hours.
• The age of Jupiter is about 4.603 billion years.
• Mercury is the smallest planet of the solar system.

Last verified on 16-02-2026

Explanation

To find the decimal equivalent of the binary number 1011:

(1 × 2³) + (0 × 2²) + (1 × 2¹) + (1 × 2⁰)

= (1 × 8) + (0 × 4) + (1 × 2) + (1 × 1)

= 8 + 0 + 2 + 1

= 11

Last verified on 12-04-2026

Explanation

• A covalent bond forms when atoms share electrons.
• It usually occurs between non-metals.
• Sharing helps atoms achieve stable electron configuration.
• No transfer of electrons occurs.
• Therefore, it is based on electron sharing.

Last verified on 12-04-2026

Explanation

• Refractive index shows how much light bends when entering a medium.
• Glass is a transparent solid with moderate optical density.
• Its refractive index is a standard value used in physics experiments.
• It is greater than water and less than diamond.
• So, the commonly accepted value for glass is around 1.5.

Last verified on 12-04-2026