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Engineering Chemistry · all questions

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The reaction of solid XeF2 with AsF5 in 1 : 1 ratio affords

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The number of hydroxyl (OH) groups present in phosphorus acid is

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The reaction of ammonium chloride with BCl3 at 140°C followed NaBH4 gives product X. The formula of X is

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The first ionization potential of Mg, AI, P and S follows the order

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Among the following diatomic molecules, the one shows EPR signal, is

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The Lewis acidity of BF3 is less than BCl3 even though fluorine is more electronegative than chlorine. It is due to

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Which one of the following will show closo structure?

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The correct classification of [B5H5]2-, B5H9 and B5H11 respectively is

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The order of acidity in boron trihalides is

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Among the following, the group of molecules that undergoes rapid hydrolysis is

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Mg6Si4O10(OH)8 is commercially known as

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The Lewis acid character of BF3, BCl3 and BBr3 follows the order

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Which of the following is an arachno borane?

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Using chlorobenzene as solvent, the reagents needed for an efficient synthesis of borazine are

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BH3 CO is more stable than BF3 CO because

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The number of 'framework electron pairs' present in the borane cluster [B12H12]2- is

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Triple superphosphate is made by treating phosphate rock with

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The most populated rotational state for HCl (B = 8.5 cm-1) at 300 K is

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The perxenate ion Xe can be prepared by

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BaTi[Si3O9] is a class of

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