Login
Subject: Chemistry, asked on 19/8/17

IRON SHOW +6 OXIDATION STATE BUT NOT +5 WHY ?

Subject: Chemistry, asked on 16/8/17

HOW DOES Fe SHOW +6 O.S BUT NOT +5, SIMILARLY Co DOES NOT SHOW +5 O.S ?

Subject: Chemistry, asked on 14/8/17

What is enthalpy of atomisation? Why d-block elements  have high Enthalpy of Atomisation?

Subject: Chemistry, asked on 14/8/17


Why melting point falls regularly as the atomic number increases ?!.. Why there is a sudden down fall in melting point of Mn & Tc ?!..
[Answer both questions here..as they are inter-related.]

Subject: Chemistry, asked on 6/8/17

What is the reason for this?????  

Subject: Chemistry, asked on 24/7/17

Mention the direct consequences of the following factors on the chemical behaviour of lanthanoid
a) They have incompletely filled d orbitals in the ground state or in one of the oxidation state
b) They contribute more valence electron per atom in the formation of metallic bond.
[ NO LINKS PLEASE ]

Subject: Chemistry, asked on 23/7/17

Fluorides of lathanoid element elements are ionic whereas bromides and iodides are covalent. Give reason.
[ NO LINKS PLEASE ]

Subject: Chemistry, asked on 29/4/17

Solve this:

Subject: Chemistry, asked on 29/4/17

Q no 5

Subject: Chemistry, asked on 29/4/17

Q no 4

Subject: Chemistry, asked on 29/4/17

2 question

Subject: Chemistry, asked on 27/4/17

Is SO2 a dehydrating agent if no, why? as H2SO4 is a dehydrating agent

Subject: Chemistry, asked on 25/4/17

Copper exhibit +2 and+1 oxidation state whereas Zinc shows only +2 oxidation state. Why?

Subject: Chemistry, asked on 25/4/17

Why Mn+2 oxidising in nature

Subject: Chemistry, asked on 2/4/17

76 th qn; with explanation please.,b )is the correcta option pls explain

45678
What are you looking for?