Physics & Chemistry Quick Hits

Forces, atoms, pH, and units. Ideal for competitive exams and general knowledge prep.

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QUESTION NO 01

Which planet is known as the Red Planet?

Answer: Mars

Iron oxide gives Mars its reddish look.

Shahzad Mahota @shahzad-mahota

302 Quizzes

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QUESTION NO 02

The SI unit of force is the?

Answer: Newton

1 N = 1 kg·m/s².

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

Humans normally have how many chromosomes?

Answer: 46

23 pairs = 46 chromosomes.

Shahzad Mahota @shahzad-mahota

302 Quizzes

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QUESTION NO 04

Which gas do plants absorb for photosynthesis?

Answer: Carbon dioxide

CO2 + water + light → sugars + oxygen.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

The hardest natural substance is?

Answer: Diamond

Diamond ranks highest on the Mohs scale.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 06

Sound cannot travel through?

Answer: Vacuum

Sound needs a material medium.

Shahzad Mahota @shahzad-mahota

302 Quizzes

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QUESTION NO 07

The center of an atom is called the?

Answer: Nucleus

Protons and neutrons form the nucleus.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

Vitamin C deficiency can cause?

Answer: Scurvy

Ascorbic acid prevents scurvy.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 09

Which blood cells help fight infection?

Answer: White blood cells

Leukocytes are immune cells.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

The pH of pure water at 25°C is about?

Answer: 7

Neutral pH is 7.

Shahzad Mahota @shahzad-mahota

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Physics & Chemistry Quick Hits

Which planet is known as the Red Planet?

The SI unit of force is the?

Humans normally have how many chromosomes?

Which gas do plants absorb for photosynthesis?

The hardest natural substance is?

Sound cannot travel through?

The center of an atom is called the?

Vitamin C deficiency can cause?

Which blood cells help fight infection?

The pH of pure water at 25°C is about?

Published By

Shahzad Mahota

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00

00

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Physics & Chemistry Quick Hits

Which planet is known as the Red Planet?

Explanation

The SI unit of force is the?

Explanation

Humans normally have how many chromosomes?

Explanation

Which gas do plants absorb for photosynthesis?

Explanation

The hardest natural substance is?

Explanation

Sound cannot travel through?

Explanation

The center of an atom is called the?

Explanation

Vitamin C deficiency can cause?

Explanation

Which blood cells help fight infection?

Explanation

The pH of pure water at 25°C is about?

Explanation

Published By

Shahzad Mahota

00

00

00

00

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