Compounds of transition elements
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CHXII08:THE D- & F-BLOCK ELEMENTS

321292 Which of the following statement is false?

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is less soluble than \(\mathrm{\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\)
2 \(\mathrm{\mathrm{CrO}_{7}^{2-}}\) has a \(\mathrm{\mathrm{Cr}-\mathrm{O}-\mathrm{Cr}}\) bond.
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is primary standard in volumetry.
4 \(\mathrm{\mathrm{CrO}_{4}^{2-}}\) is tetrahedral in shape.
JEE - 2015
CHXII08:THE D- & F-BLOCK ELEMENTS

321293 How many moles of stannic chloride can be formed when excess stannous chloride reacts with 1 mole of potassium dichromate in acidic medium?

1 1
2 2
3 3
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321294 A white crystalline salt A reacts with dilute \(\mathrm{\mathrm{HCl}}\) to liberate a suffocating gas B and also forms a yellow precipitate. The gas \(\mathrm{\mathrm{B}}\) turns potassium dichromate acidified with dilute \(\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}\) to a green coloured solution C. A, B and C are respectively

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
2 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
4 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{4}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
KCET - 2010
CHXII08:THE D- & F-BLOCK ELEMENTS

321295 The oxidation state of chromium in the final product formed by the reaction between \(\mathrm{KI}\) and acidified potassium dichromate solution is

1 +3
2 +2
3 +6
4 +4
AIIMS - 2012
CHXII08:THE D- & F-BLOCK ELEMENTS

321296 Yellow compound of lead chromate gets dissolved on treatment with hot \(\mathrm{NaOH}\) solution. The product of lead formed is a :

1 Tetraanionic complex with coordination number six.
2 Neutral complex with coordination number four.
3 Dianionic complex with coordination number six.
4 Dianionic complex with coordination number four.
JEE - 2024
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CHXII08:THE D- & F-BLOCK ELEMENTS

321292 Which of the following statement is false?

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is less soluble than \(\mathrm{\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\)
2 \(\mathrm{\mathrm{CrO}_{7}^{2-}}\) has a \(\mathrm{\mathrm{Cr}-\mathrm{O}-\mathrm{Cr}}\) bond.
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is primary standard in volumetry.
4 \(\mathrm{\mathrm{CrO}_{4}^{2-}}\) is tetrahedral in shape.
JEE - 2015
CHXII08:THE D- & F-BLOCK ELEMENTS

321293 How many moles of stannic chloride can be formed when excess stannous chloride reacts with 1 mole of potassium dichromate in acidic medium?

1 1
2 2
3 3
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321294 A white crystalline salt A reacts with dilute \(\mathrm{\mathrm{HCl}}\) to liberate a suffocating gas B and also forms a yellow precipitate. The gas \(\mathrm{\mathrm{B}}\) turns potassium dichromate acidified with dilute \(\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}\) to a green coloured solution C. A, B and C are respectively

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
2 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
4 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{4}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
KCET - 2010
CHXII08:THE D- & F-BLOCK ELEMENTS

321295 The oxidation state of chromium in the final product formed by the reaction between \(\mathrm{KI}\) and acidified potassium dichromate solution is

1 +3
2 +2
3 +6
4 +4
AIIMS - 2012
CHXII08:THE D- & F-BLOCK ELEMENTS

321296 Yellow compound of lead chromate gets dissolved on treatment with hot \(\mathrm{NaOH}\) solution. The product of lead formed is a :

1 Tetraanionic complex with coordination number six.
2 Neutral complex with coordination number four.
3 Dianionic complex with coordination number six.
4 Dianionic complex with coordination number four.
JEE - 2024
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CHXII08:THE D- & F-BLOCK ELEMENTS

321292 Which of the following statement is false?

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is less soluble than \(\mathrm{\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\)
2 \(\mathrm{\mathrm{CrO}_{7}^{2-}}\) has a \(\mathrm{\mathrm{Cr}-\mathrm{O}-\mathrm{Cr}}\) bond.
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is primary standard in volumetry.
4 \(\mathrm{\mathrm{CrO}_{4}^{2-}}\) is tetrahedral in shape.
JEE - 2015
CHXII08:THE D- & F-BLOCK ELEMENTS

321293 How many moles of stannic chloride can be formed when excess stannous chloride reacts with 1 mole of potassium dichromate in acidic medium?

1 1
2 2
3 3
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321294 A white crystalline salt A reacts with dilute \(\mathrm{\mathrm{HCl}}\) to liberate a suffocating gas B and also forms a yellow precipitate. The gas \(\mathrm{\mathrm{B}}\) turns potassium dichromate acidified with dilute \(\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}\) to a green coloured solution C. A, B and C are respectively

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
2 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
4 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{4}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
KCET - 2010
CHXII08:THE D- & F-BLOCK ELEMENTS

321295 The oxidation state of chromium in the final product formed by the reaction between \(\mathrm{KI}\) and acidified potassium dichromate solution is

1 +3
2 +2
3 +6
4 +4
AIIMS - 2012
CHXII08:THE D- & F-BLOCK ELEMENTS

321296 Yellow compound of lead chromate gets dissolved on treatment with hot \(\mathrm{NaOH}\) solution. The product of lead formed is a :

1 Tetraanionic complex with coordination number six.
2 Neutral complex with coordination number four.
3 Dianionic complex with coordination number six.
4 Dianionic complex with coordination number four.
JEE - 2024
NEET DIGITAL LIBRARY
CHXII08:THE D- & F-BLOCK ELEMENTS

321292 Which of the following statement is false?

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is less soluble than \(\mathrm{\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\)
2 \(\mathrm{\mathrm{CrO}_{7}^{2-}}\) has a \(\mathrm{\mathrm{Cr}-\mathrm{O}-\mathrm{Cr}}\) bond.
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is primary standard in volumetry.
4 \(\mathrm{\mathrm{CrO}_{4}^{2-}}\) is tetrahedral in shape.
JEE - 2015
CHXII08:THE D- & F-BLOCK ELEMENTS

321293 How many moles of stannic chloride can be formed when excess stannous chloride reacts with 1 mole of potassium dichromate in acidic medium?

1 1
2 2
3 3
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321294 A white crystalline salt A reacts with dilute \(\mathrm{\mathrm{HCl}}\) to liberate a suffocating gas B and also forms a yellow precipitate. The gas \(\mathrm{\mathrm{B}}\) turns potassium dichromate acidified with dilute \(\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}\) to a green coloured solution C. A, B and C are respectively

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
2 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
4 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{4}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
KCET - 2010
CHXII08:THE D- & F-BLOCK ELEMENTS

321295 The oxidation state of chromium in the final product formed by the reaction between \(\mathrm{KI}\) and acidified potassium dichromate solution is

1 +3
2 +2
3 +6
4 +4
AIIMS - 2012
CHXII08:THE D- & F-BLOCK ELEMENTS

321296 Yellow compound of lead chromate gets dissolved on treatment with hot \(\mathrm{NaOH}\) solution. The product of lead formed is a :

1 Tetraanionic complex with coordination number six.
2 Neutral complex with coordination number four.
3 Dianionic complex with coordination number six.
4 Dianionic complex with coordination number four.
JEE - 2024
Join With Us for More Updates
CHXII08:THE D- & F-BLOCK ELEMENTS

321292 Which of the following statement is false?

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is less soluble than \(\mathrm{\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\)
2 \(\mathrm{\mathrm{CrO}_{7}^{2-}}\) has a \(\mathrm{\mathrm{Cr}-\mathrm{O}-\mathrm{Cr}}\) bond.
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}}\) is primary standard in volumetry.
4 \(\mathrm{\mathrm{CrO}_{4}^{2-}}\) is tetrahedral in shape.
JEE - 2015
CHXII08:THE D- & F-BLOCK ELEMENTS

321293 How many moles of stannic chloride can be formed when excess stannous chloride reacts with 1 mole of potassium dichromate in acidic medium?

1 1
2 2
3 3
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321294 A white crystalline salt A reacts with dilute \(\mathrm{\mathrm{HCl}}\) to liberate a suffocating gas B and also forms a yellow precipitate. The gas \(\mathrm{\mathrm{B}}\) turns potassium dichromate acidified with dilute \(\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}\) to a green coloured solution C. A, B and C are respectively

1 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
2 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
3 \(\mathrm{\mathrm{Na}_{2} \mathrm{~S}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
4 \(\mathrm{\mathrm{Na}_{2} \mathrm{SO}_{4}, \mathrm{SO}_{2}, \mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}}\)
KCET - 2010
CHXII08:THE D- & F-BLOCK ELEMENTS

321295 The oxidation state of chromium in the final product formed by the reaction between \(\mathrm{KI}\) and acidified potassium dichromate solution is

1 +3
2 +2
3 +6
4 +4
AIIMS - 2012
CHXII08:THE D- & F-BLOCK ELEMENTS

321296 Yellow compound of lead chromate gets dissolved on treatment with hot \(\mathrm{NaOH}\) solution. The product of lead formed is a :

1 Tetraanionic complex with coordination number six.
2 Neutral complex with coordination number four.
3 Dianionic complex with coordination number six.
4 Dianionic complex with coordination number four.
JEE - 2024