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What are distinguishing characteristics of metallic bonding?
Metallic state can be visualized like an array of positive ions, with a common pool of electrons to which all the metal atoms have contributed their outer electrons. These electrons have freedom to move anywhere within crystal and make metallic bonds no directional.
Why is it important to know pka of a buffer
Maximum number of electrons present in N shell is: (1) 18 (2) 32 (3) 2 (4) 8 Ans: 32
Q. Tests for sensory evaluation? Tests for sensory evaluation are of three types: • Difference testing - This is the sensory testing designed to determine whether detectabl
Number of nodal centres for 2s orbital: (1) 1 (2) 0 (3) 4 (4) 3 Ans: 1
0.45 g of anhydrous oxalic acid is reacted with 50 ml of KMNO4 . Then normality of KMnO4 is??
why beryllium cannot be attacked readily by acid
synthesis and uses of DDT and BHC
The shape of 2p orbital is ; (1) Spherical (2) Ellipsoidal (3) Dumb-bell (4)Pyramidal ans: Dumb-bell
The number of appositively charged ions surrounded a certain ion in an ionic crystal lattice is known as co- ordination number.
Transition metals are substances of the d block that form compounds where electrons from d orbitals are ionized or otherwise accept in bonding. Typical transition metal charac
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