What is the basic theme of organisation in the periodic table?
Concept: Significance of Classification of Elements
Calculate the number of electrons which will together weigh one gram.
Concept: Subatomic Particles > Discovery of Electron
Calculate the mass and charge of one mole of electrons.
Concept: Subatomic Particles > Discovery of Electron
Write the complete symbol for the atom with the given atomic number (Z) and Atomic mass (A)
Z = 17, A = 35
Concept: Subatomic Particles > Discovery of Electron
Write the complete symbol for the atom with the given atomic number (Z) andAtomic mass (A)
Z = 92, A = 233
Concept: Subatomic Particles > Discovery of Electron
Write the complete symbol for the atom with the given atomic number (Z) andAtomic mass (A)
Z = 4, A = 9
Concept: Subatomic Particles > Discovery of Electron
Explain the Formation of a Chemical Bond.
Concept: Concept of Kossel-lewis Approach to Chemical Bonding
Write Lewis symbols for the following atoms and ions: S and S2–
Concept: Concept of Kossel-lewis Approach to Chemical Bonding
Write Lewis symbols for the following atoms and ions: Al and Al3+
Concept: Concept of Kossel-lewis Approach to Chemical Bonding
Write Lewis symbols for the following atoms and ions H and H–
Concept: Concept of Kossel-lewis Approach to Chemical Bonding
Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:-
K and S
Concept: Concept of Kossel-lewis Approach to Chemical Bonding
Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:
Ca and O
Concept: Concept of Kossel-lewis Approach to Chemical Bonding
Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:
Al and N
Concept: Concept of Kossel-lewis Approach to Chemical Bonding
What will be the minimum pressure required to compress 500 dm3 of air at 1 bar to 200 dm3 at 30°C?
Concept: Intermolecular Forces - Introduction
What would be the SI unit for the quantity pV2T 2/n?
Concept: Intermolecular Forces - Introduction
Choose the correct answer. A thermodynamic state function is a quantity
(i) used to determine heat changes
(ii) whose value is independent of path
(iii) used to determine pressure-volume work
(iv) whose value depends on temperature only.
Concept: Thermodynamic Terms
For an isolated system, ΔU = 0, what will be ΔS?
Concept: Thermodynamic Terms
Define environmental chemistry.
Concept: Environmental Pollution - Introduction
What are the common physical and chemical features of alkali metals?
Concept: Group 1 Elements - Alkali Metals
Why are alkali metals not found in nature?
Concept: Group 1 Elements - Alkali Metals