Phosphorus and Its Compounds
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NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI11:THE P-BLOCK ELEMENTS

316867 In cigarette lighters ____ is used.

1 misch metal
2 Mg - alloy
3 \(\mathrm{CeO}_{2}\)
4 pyrophoric alloy
CHXI11:THE P-BLOCK ELEMENTS

316868 The number of \(\mathrm{P}-\mathrm{O}-\mathrm{P}\) bridges in the structure of phosphorus pentoxide and phosphorus trioxide are, respectively

1 6, 5
2 5, 6
3 6, 6
4 5, 5
CHXI11:THE P-BLOCK ELEMENTS

316855 White phosphorus reacts with chlorine and the product hydrolyses in the presence of water. The mass of \(\mathrm{HCl}\) obtained by the hydrolysis of the product formed by the reaction of \(62 \mathrm{~g}\) of white phosphorus with chlorine in the presence of water is

1 \(0.219 \mathrm{~g}\)
2 \(21.9 \mathrm{~g}\)
3 \(2.19 \mathrm{~g}\)
4 \(219 \mathrm{~g}\)
CHXI11:THE P-BLOCK ELEMENTS

316856 Which of the following statement is incorrect

1 hypophosphorous acid reduces silver nitrate to silver
2 in solid state \(\mathrm{PCl}_{5}\) exists as
\(\left[\mathrm{PCl}_{4}\right]^{+}\left[\mathrm{PCl}_{6}\right]^{-}\)
3 pure phosphine is non-inflammable
4 phosphorous acid on heating disproportionates to give metal phosphoric acid and phosphine
KCET - 2014
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316867 In cigarette lighters ____ is used.

1 misch metal
2 Mg - alloy
3 \(\mathrm{CeO}_{2}\)
4 pyrophoric alloy
CHXI11:THE P-BLOCK ELEMENTS

316868 The number of \(\mathrm{P}-\mathrm{O}-\mathrm{P}\) bridges in the structure of phosphorus pentoxide and phosphorus trioxide are, respectively

1 6, 5
2 5, 6
3 6, 6
4 5, 5
CHXI11:THE P-BLOCK ELEMENTS

316855 White phosphorus reacts with chlorine and the product hydrolyses in the presence of water. The mass of \(\mathrm{HCl}\) obtained by the hydrolysis of the product formed by the reaction of \(62 \mathrm{~g}\) of white phosphorus with chlorine in the presence of water is

1 \(0.219 \mathrm{~g}\)
2 \(21.9 \mathrm{~g}\)
3 \(2.19 \mathrm{~g}\)
4 \(219 \mathrm{~g}\)
CHXI11:THE P-BLOCK ELEMENTS

316856 Which of the following statement is incorrect

1 hypophosphorous acid reduces silver nitrate to silver
2 in solid state \(\mathrm{PCl}_{5}\) exists as
\(\left[\mathrm{PCl}_{4}\right]^{+}\left[\mathrm{PCl}_{6}\right]^{-}\)
3 pure phosphine is non-inflammable
4 phosphorous acid on heating disproportionates to give metal phosphoric acid and phosphine
KCET - 2014
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CHXI11:THE P-BLOCK ELEMENTS

316867 In cigarette lighters ____ is used.

1 misch metal
2 Mg - alloy
3 \(\mathrm{CeO}_{2}\)
4 pyrophoric alloy
CHXI11:THE P-BLOCK ELEMENTS

316868 The number of \(\mathrm{P}-\mathrm{O}-\mathrm{P}\) bridges in the structure of phosphorus pentoxide and phosphorus trioxide are, respectively

1 6, 5
2 5, 6
3 6, 6
4 5, 5
CHXI11:THE P-BLOCK ELEMENTS

316855 White phosphorus reacts with chlorine and the product hydrolyses in the presence of water. The mass of \(\mathrm{HCl}\) obtained by the hydrolysis of the product formed by the reaction of \(62 \mathrm{~g}\) of white phosphorus with chlorine in the presence of water is

1 \(0.219 \mathrm{~g}\)
2 \(21.9 \mathrm{~g}\)
3 \(2.19 \mathrm{~g}\)
4 \(219 \mathrm{~g}\)
CHXI11:THE P-BLOCK ELEMENTS

316856 Which of the following statement is incorrect

1 hypophosphorous acid reduces silver nitrate to silver
2 in solid state \(\mathrm{PCl}_{5}\) exists as
\(\left[\mathrm{PCl}_{4}\right]^{+}\left[\mathrm{PCl}_{6}\right]^{-}\)
3 pure phosphine is non-inflammable
4 phosphorous acid on heating disproportionates to give metal phosphoric acid and phosphine
KCET - 2014
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI11:THE P-BLOCK ELEMENTS

316867 In cigarette lighters ____ is used.

1 misch metal
2 Mg - alloy
3 \(\mathrm{CeO}_{2}\)
4 pyrophoric alloy
CHXI11:THE P-BLOCK ELEMENTS

316868 The number of \(\mathrm{P}-\mathrm{O}-\mathrm{P}\) bridges in the structure of phosphorus pentoxide and phosphorus trioxide are, respectively

1 6, 5
2 5, 6
3 6, 6
4 5, 5
CHXI11:THE P-BLOCK ELEMENTS

316855 White phosphorus reacts with chlorine and the product hydrolyses in the presence of water. The mass of \(\mathrm{HCl}\) obtained by the hydrolysis of the product formed by the reaction of \(62 \mathrm{~g}\) of white phosphorus with chlorine in the presence of water is

1 \(0.219 \mathrm{~g}\)
2 \(21.9 \mathrm{~g}\)
3 \(2.19 \mathrm{~g}\)
4 \(219 \mathrm{~g}\)
CHXI11:THE P-BLOCK ELEMENTS

316856 Which of the following statement is incorrect

1 hypophosphorous acid reduces silver nitrate to silver
2 in solid state \(\mathrm{PCl}_{5}\) exists as
\(\left[\mathrm{PCl}_{4}\right]^{+}\left[\mathrm{PCl}_{6}\right]^{-}\)
3 pure phosphine is non-inflammable
4 phosphorous acid on heating disproportionates to give metal phosphoric acid and phosphine
KCET - 2014
NEET DIGITAL LIBRARY