Which of the following is manufactured from the molecular nitrogen by bacteria
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NEET Practice Questions (MCQs) with Answers & Solutions
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Which of the following Tendencies remains unchanged on going down in the nitrogen family
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Explanation
Highest oxidation state is +5 which remains unchanged.
$ (NH_4)_2 Cr_2O_7 $ on heating liberates a gas. The same gas will be obtained by
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Explanation
$ (NH_4)_2Cr_2O_7 \xrightarrow [] { { \triangle } } N2 \uparrow + Cr_2O_3+4H_2O $ $ NH_4 NO_2 \xrightarrow [] { { \triangle }} N_2 + 2 H_2 O $
When plants and animals decay, the organic N is converted in to inorganic N. The inorganic N is in the form is
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In an organic compound , phosphorous in estimated as
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Explanation
In an organic compound, phosphorus is often estimated as magnesium pyrophosphate ( ext{Mg}_2 ext{P}_2 ext{O}_7). This compound is formed during the process of phosphorus analysis, where the organic sample is typically combusted, and the phosphorus is precipitated and weighed as magnesium pyrophosphate.
Ammonium nitrate decomposes on heating in to
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Explanation
$ NH_4 NO_3 \xrightarrow [] { { \triangle } } 2 H_2 O + N_2 O \uparrow $
Non - Combustible hydride is
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Explanation
Ammonia ($NH_3$) is a non-combustible hydride. It does not burn in air because it has a high nitrogen content, which makes it more stable and less likely to combust compared to other hydrides like $PH_3$, $AsH_3$, and $SbH_3$.
The element which catches fire in air at $ 30 ^\circ C $ and is stored under water is
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Explanation
because of its very low ignition temp (303K) it is always kept under water.
Which of the following acid exist in polymeric form
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Explanation
$HPO_3$ (Metaphosphoric acid) exists in a polymeric form. It can form a long chain or cyclic polymer due to its ability to form P-O-P bonds.
Which of the following is not hydrolysed
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Explanation
Due to absence of d - orbital in N - atom, it can't accept e– from $ H_2O for hydrolysis of NF_3 $
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