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State the function along with one example each of:
(i) Antihistamines
(ii) Antioxidants
(b) What are hybrid propellants?
Q. What is Diborane? The chemistry of diborane has aroused considerable interest because of its usefulness in many synthetic reactions and also because the elucidation of its s
The electronic configuration of four elements are given in brackets: L (1s 2 , 2s 2 , 2p 1 , ) M (1s 1 , 2s 2 , 2p 5 ) Q (1s 2, 2s 2 , 2p 6 3s 1 ,) R ( 1s 1 , 2s 2 , 2p
Biomolecules All living bodies are made up of various lifeless substances that are availabe in their cells in a extremely complex but highly organized form. These are known as
what is chemical cobination
Hybrid propellants: These propellants are the propellants which contain solid fuel & a liquid oxidiser. For instance, liquid N 2 O 4 or liquid oxidizer and acrylic rubber (s
Nuclei tend to have more neutrons than protons at high mass numbers because: (1) Neutrons are neutral particles (2) Neutrons have more mass than protons (3) More neut
Calculate the combustion energies for the burning of 1 mol of propane and butane. It can be supposed that all reactants and products are obtained under standard conditions.
A completely filled d -orbital ( d 10 ): (1) Spherically symmetrical (2) Has octahedral symmetry (3) Has tetrahedral symmetry (4) Depends on the atom Ans: Spherical
what is molality?
All electrons on the 4p sub-shell must be characterized by the quantum number(s): (1) n=4, m= 0, s= ± 1/2 (2) l=1 (3) l=0, s= ± 1/2
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