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IMPORTANT
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Which of the following allotropic forms of sulphur is the most stable thermodynamically:-

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Important Questions on The p-Block Elements

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IMPORTANT
Which of the following acids is not a peroxo acid:-
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IMPORTANT
Which of the following statements is correct:
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IMPORTANT
Which of the following pairs of halogens have approximately identical bond energy ?
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IMPORTANT
Which of the following is a tetrabasic acid?
HARD
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IMPORTANT
There is no S-S bond in
MEDIUM
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IMPORTANT
Which of the following have a three dimensional network structure?
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IMPORTANT
The silicate anion in the mineral kinoite is a chain of three SiO44-  tetrahedras that share corners with adjacent tetrahedras. The mineral also contains Ca2+, Cu2+  ions and H2O  molecules in a 1 :1 :1  ratio, mineral is represented by:
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JEE Main/Advance
IMPORTANT
A mixture of boric acid with ethyl alcohol burns with green edged flame due to formation of -