How many FeSO₄.7H₂SO₄ will be oxidised by an acidified solution containing 9.48 g KMnO₄
Options
(a) 83.4 g (b) 16.7 g (c) 1.67 g (d) 8.3 g
Correct Answer:
83.4 g
Explanation:
Balanced […]
Which of the following cations has the maximum number of unpaired electrons
Options
(a) Mn²⁺ (b) Fe²⁺ (c) Co²⁺ (d) Ni²⁺
Correct Answer:
Mn²⁺
Explanation:
No explanation available. Be the first to write […]
A mixture of two salts is not soluble in water but dissolves completely in dilute hydrochloric acid to form a colourless solution. The mixture could be
Options
(a) AgNO₃ and KBr (b) BaCO₃ […]
Transition metals show paramagnetism
Options
(a) due to characteristic configuration (b) high lattice energy (c) due to variable oxidation states (d) due to unpaired electrons
Correct Answer:
due to unpaired electrons
Explanation:
No […]
Which of the following trivalent ion has the largest atomic radii in the lanthanide series
Options
(a) La (b) Pm (c) Ce (d) Lu
Correct Answer:
La
Explanation:
No explanation available. Be the […]
Which of the following metals acts as the most efficient catalyst
Options
(a) Alkaline earth metals (b) Transition metals (c) Alkali metals (d) Coloured metals
Correct Answer:
Transition metals
Explanation:
No explanation available. […]
Which of the following lanthanide is commonly used
Options
(a) Lanthanum (b) Nobelium (c) Thorium (d) Cerium
Correct Answer:
Cerium
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which one of the following statements concerning lanthanides elements is false
Options
(a) Lanthanides are separated from one another by ion exchange methods (b) The ionic radii of trivalent lanthanides steadily increase with […]
What is the magnetic moment for Mn²⁺ ion in low spin state
Options
(a) 5.90 BM (b) 8.90 BM (c) 2.8 BM (d) 1.73 BM
Correct Answer:
1.73 BM
Explanation:
For Mn²⁺ ion […]
Which of the following is not a transition metal
Options
(a) Cr (b) Mn (c) Sn (d) Cu
Correct Answer:
Sn
Explanation:
No explanation available. Be the first to write the explanation for […]
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