Options:
- A. 1-mole molecules of water
- B. 1-gram molecule of water
- C. 3-gram atoms
- D. all
View Answer
D. all
Chemistry
The properties of an element mosly corresponds to that isotope which has greater_________________?
Options:
- A. Mass number
- B. Atomic mass
- C. Relative abundance
- D. all of the above
View Answer
C. Relative abundance
Which of the following statements about isotopes is correct ?
Options:
- A. Isotopes with odd atomic number are abundant
- B. Isotopes with odd atomic number and even mass number are abundant
- C. Isotopes with even atomic number and even mass number are abundant
- D. Isotopes with even atomic number and odd mass no are abundant
View Answer
C. Isotopes with even atomic number and even mass number are abundant
1 a.m.u =__________________?
Options:
- A. 1.6 x 10-27 kg
- B. 1.6 x 10-24 kg
- C. 1.6 x 10-26 kg
- D. 1.6 x 10-28 kg
View Answer
A. 1.6 x 10-27 kg
The soul of chemistry is dealing with___________?
Options:
- A. Internal structural changes in matter
- B. Composition of matter
- C. Properties of matter
- D. Composition and properties of matter
View Answer
D. Composition and properties of matter
The radioactive isotope of hydrogen is called___________?
Options:
- A. tritium
- B. deuterium
- C. protium
- D. ortho-hydrogen
View Answer
A. tritium
Electron was discovered by?
Options:
- A. Michael Faraday
- B. James Maxwell
- C. Yuri Gagarin
- D. J.J Thomson
View Answer
D. J.J Thomson
Sodium carbonate is produced by____________?
Options:
- A. haber process
- B. Amonia solvay process
- C. decons process
- D. lead chamber process
View Answer
B. Amonia solvay process
Which of the following is a substance?
Options:
- A. Sea water
- B. Brass
- C. Tape water
- D. Graphite
View Answer
D. Graphite
Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?
Options:
- A. ionic substances
- B. metallic substances
- C. molecular solids
- D. covalent network solids
View Answer
B. metallic substances