Science

Which hone of the following is an inert gas?

• Helium (He)

• Neon (Ne)

• Argon (Ar)

• All of them

What is the combining capacity of an element called?

• Shell

• Atomic weight

• Valency

• Nucleus

How many element are found naturally?

• 92

• 112

• 118

• 29

What is the valency of Sodium (Na)?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which compound is expressed as SO₄ ?

• Methane

• Ammonia

• Sulphide

• Sulphate

Tags

NGSS.MS-PS1-1

What is the S.I. unit of Electric current?

• Kelvin

• Ampere

• Newton

• Candela

How many seconds are there in 2 days?

• 86,400 s

• 3600 s

• 1,72,800 s

• None of them

Which one of the following is a fundamental quantity?

• Area

• Volume

• Weight

• Temperature

Which one of the following is a second class lever?

• Nail cutter

• Nut cracker

• Seesaw

• Forecep

Which one of the following is a vector quantity?

• Mass

• Speed

• Density

• Force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-4

NGSS.MS-PS2-5