Foundation level - IV JEE Mock test -7 (Chemistry)

As , per the current system, carbon-12 has been taken as the standard for measuring atomic masses.

• Yes

• No

• May be

• Does not exist

What is the mass of hydrogen in terms of amu?

• 1.0080 amu

• 1.0070 amu

• 1.0180 amu

• 1.0020 amu

According to Dalton’s Atomic Theory, matter consists of indivisible _______

• Molecules

• Atom

• Ions

• Mixture

What did Dalton’s Theory couldn’t explain?

• conservation of mass
  

• chemical philosophy

• gaseous volumes

• indivisible atoms

What is the name of Dalton’s publication?

• A new system of atomic philosophy

• An old system of Chemical Philosophy
  

• A new system of chemicalA new system of chemical prophecy

• A New System of Chemical Philosophy

Which of the following may not be explained by Dalton’s atomic theory?

• conservation of mass
  

• reason for combining atoms

• indivisible atoms

• chemical philosophy

What is 1 Dalton?

• a unified mass unit, 1.360539040(20)×10⁻²⁷kg

• unified mass unit, 1.660539040(20)×10⁻²⁷kg

• a unified mass unit, 1.640539040(20)×10⁻²⁷kg
  

• unified mass unit, 1.660539040(20)×10⁻²⁷kg

Could Dalton’s atomic theory explain the laws of chemical combinations?

• No

• Yes

• Only a few

• Except one

All atoms of a given element have identical __________ including identical ________

• Properties, mass

• Temperature, pressure

• Volume, properties

• Weight, volume

The Law of Conservation of mass was given by-

• Julius Robert Mayer

• Antoine Laurent Lavoisier

• Dmitri Ivanovich Mendeleev

• Linus Carl Pauling