Science Quiz 2

Identify the personality

• Albert Einstein

• Stephen hawking

• Mark Ruffalo

• Charles Darwin

What is the PH of water

• 7

• 6

• 14

• 2

Acid turns blue litmus paper into which color?

• Black

• Orange

• Green

• Red

What is the basic unit of our neural system?

• Neutron

• Neuron

• Nephron

• Nucleon

What is the other name of Newton's first law of motion?

• Action-reaction

• Change in momentum

• Law of inertia

• Constant momentum

Answer explanation

Newton's first law of motion is also known as the law of inertia. It states that everyone remains in their previous position.

According to newton's second law of motion, change in momentum per unit time is equal to ________.

• Force

• Energy

• Acceleration

• Work

Answer explanation

According to newton's second law of motion, change in momentum per unit time is equal to force applied on that body. Therefore, option (a) is the correct answer.

What is the color of SO₂ gas?

• Blue

• Grey

• Colourless

• Brown

Answer explanation

SO₂ is the chemical formula of sulfur dioxide. The color of SO₂ gas is colorless. It gives a pungent smell. Therefore, if we want to recognize the presence of SO₂ gas, we smell it.

What is the color of CuSO4?

• Blue

• Orange

• White

• Green

Answer explanation

CuSO4 is the chemical formula of copper sulphate, and its color is white.

What is the atomic number of phosphorus?

• 12

• 13

• 14

• 15

Name the metal which is most ductile?

• Gold

• Sliver

• Copper

• Iron

Answer explanation

Gold and platinum are the most ductile metal. Ductility is the property of any element by which it can modify into a wire.