Select the incorrect statement for B2H6
It contains B-B ionic bond
It has two types of hydrogen bonds.
All of these.
Each boron is sp3 hybridized.
It doesn’t contain B-B Bond.
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Chapters. Atomic Structure
The electron identified by quantum number n and l
(i) n = 4, l = 1
(ii) n = 4, l = 0
(iii) n = 3, l = 0
(iv) n = 3, l = 1
can be placed in order of increasing energy
Chapters. P Block Elements
When copper is heated with conc HNO3. It produces
Chapters. Some Basic Concepts of Chemistry
The mole fraction of glucose in an aqueous solution is 0.2 then the molality of the solution will be
Chapters. Coordination Compounds
The number of isomers possible for the octahedral complex [CoCl2(en)(NH3)2]+ is
Chapters. Solid State
A metal exists as an oxide with the formula M0.96O. Metal M can exist as M+2 and M+3 in its oxide M0.96O. The percentage of M+3 in the oxide is nearly.
Chapters. Carboxylic Acids
Predict the product Z in the following series of reactions.
Ethanoic acid X Y . Z
Chapters. Surface Chemistry
Which is the correct statement about the gold number?
Chapters. Biomolecules
Glucose is an aldose. Which one of the following reactions is not expected with glucose?
Chapters. Stereo Chemistry
The total number of stereoisomers of the compound 2,4-dichloro heptane are ?
Chapters. Structural Isomerism
Tautomerism is not exhibited by
Chapters. Chemical Bonding and Molecular Structure
Which is the correct arrangement of molecules regarding dipole moment?
Chapters. D and F Block Elements
Match the metal ions given in Column - I with the magnetic moments of the ions given in column - II and assign the correct code
Column I | Column II |
a) Co3+ | i) B.M. |
b) Cr3+ | ii) B.M. |
c) Fe3+ | iii) B.M. |
d) Ni2+ | iv) B.M. |
v) B.M. |
Chapters. Classification of Elements and Periodicity in Properties
If element A shows two cationic states +2 and +3 and form oxides in such a way that the ratio of the element showing +2 and +3 state is 1:3 in a compound. The formula of the compound will be.
Chapters. P Block Elements
P4O6 reacts with cold water to give
Chapters. Hydrocarbons
Reagent A is?
Chapters. Chemical Kinetics
In the first-order reaction t99.9% is 60 minutes, t50%of the reaction would be nearly
Chapters. Solid State
All spinel structures have
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