08. THE D- & F-BLOCK ELEMENTS
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THE d-AND f-BLOCK ELEMENTS

16203 Platinum, palladium, iridium etc., are called noble metals because

1 Alfred Noble discovered them
2 They are inert towards many common reagents
3 They are shining lustrous and pleasing to look at
4 They are found in active state
THE d-AND f-BLOCK ELEMENTS

16530 Which of the following is also known as “Fools gold”

1 Wurtzite
2 Iron pyrites
3 Chalcosite
4 Silver glance
THE d-AND f-BLOCK ELEMENTS

16582 German silver is an alloy of

1 Copper, zinc and nickel
2 Copper and silver
3 Copper, zinc and tin
4 Copper, zinc and silver
THE d-AND f-BLOCK ELEMENTS

16204 Which of the following statement is not true about Mohr's salt

1 It decolourises \(KMn{O_4}\)
2 It is a primary standard
3 It is a double salt
4 Oxidation state of iron is \(+3\)  in this salt
THE d-AND f-BLOCK ELEMENTS

16661 Copper sulphate is commercially made from copper scraps by

1 Dissolving in hot conc. \({H_2}S{O_4}\)
2 The action of dil. \({H_2}S{O_4}\) and air
3 Heating with sodium sulphate
4 Heating with sulphur
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THE d-AND f-BLOCK ELEMENTS

16203 Platinum, palladium, iridium etc., are called noble metals because

1 Alfred Noble discovered them
2 They are inert towards many common reagents
3 They are shining lustrous and pleasing to look at
4 They are found in active state
THE d-AND f-BLOCK ELEMENTS

16530 Which of the following is also known as “Fools gold”

1 Wurtzite
2 Iron pyrites
3 Chalcosite
4 Silver glance
THE d-AND f-BLOCK ELEMENTS

16582 German silver is an alloy of

1 Copper, zinc and nickel
2 Copper and silver
3 Copper, zinc and tin
4 Copper, zinc and silver
THE d-AND f-BLOCK ELEMENTS

16204 Which of the following statement is not true about Mohr's salt

1 It decolourises \(KMn{O_4}\)
2 It is a primary standard
3 It is a double salt
4 Oxidation state of iron is \(+3\)  in this salt
THE d-AND f-BLOCK ELEMENTS

16661 Copper sulphate is commercially made from copper scraps by

1 Dissolving in hot conc. \({H_2}S{O_4}\)
2 The action of dil. \({H_2}S{O_4}\) and air
3 Heating with sodium sulphate
4 Heating with sulphur
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THE d-AND f-BLOCK ELEMENTS

16203 Platinum, palladium, iridium etc., are called noble metals because

1 Alfred Noble discovered them
2 They are inert towards many common reagents
3 They are shining lustrous and pleasing to look at
4 They are found in active state
THE d-AND f-BLOCK ELEMENTS

16530 Which of the following is also known as “Fools gold”

1 Wurtzite
2 Iron pyrites
3 Chalcosite
4 Silver glance
THE d-AND f-BLOCK ELEMENTS

16582 German silver is an alloy of

1 Copper, zinc and nickel
2 Copper and silver
3 Copper, zinc and tin
4 Copper, zinc and silver
THE d-AND f-BLOCK ELEMENTS

16204 Which of the following statement is not true about Mohr's salt

1 It decolourises \(KMn{O_4}\)
2 It is a primary standard
3 It is a double salt
4 Oxidation state of iron is \(+3\)  in this salt
THE d-AND f-BLOCK ELEMENTS

16661 Copper sulphate is commercially made from copper scraps by

1 Dissolving in hot conc. \({H_2}S{O_4}\)
2 The action of dil. \({H_2}S{O_4}\) and air
3 Heating with sodium sulphate
4 Heating with sulphur
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THE d-AND f-BLOCK ELEMENTS

16203 Platinum, palladium, iridium etc., are called noble metals because

1 Alfred Noble discovered them
2 They are inert towards many common reagents
3 They are shining lustrous and pleasing to look at
4 They are found in active state
THE d-AND f-BLOCK ELEMENTS

16530 Which of the following is also known as “Fools gold”

1 Wurtzite
2 Iron pyrites
3 Chalcosite
4 Silver glance
THE d-AND f-BLOCK ELEMENTS

16582 German silver is an alloy of

1 Copper, zinc and nickel
2 Copper and silver
3 Copper, zinc and tin
4 Copper, zinc and silver
THE d-AND f-BLOCK ELEMENTS

16204 Which of the following statement is not true about Mohr's salt

1 It decolourises \(KMn{O_4}\)
2 It is a primary standard
3 It is a double salt
4 Oxidation state of iron is \(+3\)  in this salt
THE d-AND f-BLOCK ELEMENTS

16661 Copper sulphate is commercially made from copper scraps by

1 Dissolving in hot conc. \({H_2}S{O_4}\)
2 The action of dil. \({H_2}S{O_4}\) and air
3 Heating with sodium sulphate
4 Heating with sulphur
Join With Us for More Updates
THE d-AND f-BLOCK ELEMENTS

16203 Platinum, palladium, iridium etc., are called noble metals because

1 Alfred Noble discovered them
2 They are inert towards many common reagents
3 They are shining lustrous and pleasing to look at
4 They are found in active state
THE d-AND f-BLOCK ELEMENTS

16530 Which of the following is also known as “Fools gold”

1 Wurtzite
2 Iron pyrites
3 Chalcosite
4 Silver glance
THE d-AND f-BLOCK ELEMENTS

16582 German silver is an alloy of

1 Copper, zinc and nickel
2 Copper and silver
3 Copper, zinc and tin
4 Copper, zinc and silver
THE d-AND f-BLOCK ELEMENTS

16204 Which of the following statement is not true about Mohr's salt

1 It decolourises \(KMn{O_4}\)
2 It is a primary standard
3 It is a double salt
4 Oxidation state of iron is \(+3\)  in this salt
THE d-AND f-BLOCK ELEMENTS

16661 Copper sulphate is commercially made from copper scraps by

1 Dissolving in hot conc. \({H_2}S{O_4}\)
2 The action of dil. \({H_2}S{O_4}\) and air
3 Heating with sodium sulphate
4 Heating with sulphur