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Quartz is an example of
Quartz is a three-dimensional network silicate. In quartz, each silicon atom is bonded to four oxygen atoms in a tetrahedral structure, forming a continuous three-dimensional network. This structure contributes to the hardness and stability of quartz.
Which of the following elements does not form stable diatomic molecules
Phosphorus does not form stable diatomic molecules. Instead, it exists in forms such as white phosphorus (P4) or red phosphorus, which are more stable. In contrast, iodine (I2), nitrogen (N2), and oxygen (O2) form stable diatomic molecules.
$ HNO_3 + P_2O_5 \rightarrow A + B $ , A is an Oxyacid of phosphorous and B is an oxide of N. A and B respectively are
The reaction between $HNO_3$ and $P_2O_5$ yields metaphosphoric acid ($HPO_3$) and dinitrogen pentoxide ($N_2O_5$). The balanced equation is: $HNO_3 + P_2O_5 ightarrow HPO_3 + N_2O_5$.
When heated $ NH_3$ is passed over CuO gas evolved is
When ammonia ($NH_3$) is passed over copper(II) oxide (CuO) and heated, nitrogen gas ($N_2$) is evolved. The reaction is: $2NH_3 + 3CuO ightarrow N_2 + 3Cu + 3H_2O$.
When concentrated nitric acid is heated it decomposes to give
$ 4HNO_3 \rightarrow 4NO_2 + O_2 + 2H_2O $
Which of the following metal produces nitrous oxide with dil $ HNO_3$
$ 4Zn + 10HNO_3 \rightarrow 4Zn(NO_3)_2 + 5H_2O + 3N_2O $
Which Nitrogen trihalides is least basic
$ NF_3 $ It is least basic because of high electronegativity of 3F atoms. The lone pair present on nitrogen atom is not easily available for donation.
$ P_4O_6 $ reacts with water to give
$ P_4O_6 + 6H_2O \rightarrow 4H_3PO_3 $
Which does not form complex
Nitrogen does not form complex because of the absence of d - orbitals.
Nitrogen is relatively inactive element because
$ N \equiv N bond energy is very high 945KJ mole^{–1} $
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