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An element which can exist in two or more forms in the same physical state, exhibits
Which of the following changes is characteristic of an alpha-particle emission?
Which of the following molecules has a linear structure?
An element X has an atomic number of 16. What is its most likely oxidation state in its binary compounds?
The volume occupied by a given mass of gas depends on its
What is the mass number of an element having 20 neutrons, 15 protons and 15 electrons?
The electronic configuration of an element X is 1s22s 22s63p 2 3p4. It can be deduced that X
Which of the following can be used to predict the type of bonding in HCI?
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