Search SchoolNGR

Chemistry Past Questions and Answers

Classroom

Chemistry Questions

Question 2796:

Which of the electrons in the following orbitals will experience the greatest nuclear attraction?

SchoolNGR Classroom

A 1s electron of helium
B 1s electron of potassium
C 23 electron of boron
D 2s electron of carbon

View Answer & Explanation

Question 2797:

A nuclide emits a beta-particle (e) in the process, that atomic number

SchoolNGR Classroom

A Increases by 1 while the mass numer remains constant
B Decreases by 2 while the mass number remains constant
C Remains constant while the mass number decreases by 2
D Remains constant while the mass number increases by 1

View Answer & Explanation

Question 2798:

One of the characteristics of transition metals is

SchoolNGR Classroom

A Reducing ability
B Ductility
C Ability to conduct electricity
D Formation of coloured ions

View Answer & Explanation

Question 2799:

A metal X forms two chlorides with the formulae XCI<sub style='font-size: smaller;'>2</sub> and XCI<sub style='font-size: smaller;'>3</sub>. Where is X in the Periodic Table?

SchoolNGR Classroom

A Group ll
B Group llI
C D-block
D S-block

View Answer & Explanation

Question 2800:

A metal X forms two chlorides with the formulae XCI2 and XCI3. Where is X in the Periodic Table?<br/>What type of bonding exists between X and chlorine in each of the chlorides?

SchoolNGR Classroom

A Metallic bonding
B Ionic bonding
C Covalent bonding
D Dative bonding

View Answer & Explanation

Stay Updated

Follow us on:

Subjects