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Dual nature of particles was proposed by: (1) Heisenberg (2) Lowry (3) de-Broglie (4) Schrodinger Ans:de-Broglie
Which of the following statements is not correct for an electron that has the quantum numbers n=4 and m =2: (1) The electron may have the quantum number s= +1/2 (2) The e
Difference between vegetable oils and Mineral oils Property Vegetable oils Minerals oils 1. Composition These ar
An ion has 18 electrons in the outermost shell, it is: (1) Cu + (2) Th 4+ (3) Cs + (4) K + Ans
Explain heat of Combustion? Ans) The amount of heat liberated when single mole of any substance is completely burnt in oxygen is known as heat of combustion H is negative for he
For the formation of covalent bond, the difference in the value of electron egativities should be: (1) Equal to or less than 1.7 (2) More than 1.7 (3) 1.7 or mor
what is covalent bond and its types?
Which of the following statements is not true for ionic compoundss: (1) High melting point (2) Least lattice energy (3)Least solubility in organic compounds (4) Solubl
what is redox titration
prepration,reactions ,uses and reactivity of dihydric alcohols
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