In the reaction : 4Fe + 3O₂ ⇌ 4Fe³⁺ + 6O₂²⁻. Which of the following
In the reaction : 4Fe + 3O₂ ⇌ 4Fe³⁺ + 6O₂²⁻. Which of the following statement is incorrect
Options
(a) Metallic iron is a reducing agent (b) Fe³⁺ is an oxidising agent (c) […]
Chemistry
CaCO₃ ⇌ CaO + CO₂ reaction in a lime kiln goes to completion because
CaCO₃ ⇌ CaO + CO₂ reaction in a lime kiln goes to completion because
Options
(a) CaO does not react to CO₂ to give CaCO₃ (b) backward reaction is very slow (c) CO₂ […]
If concentration of reactants is increased by ‘x’,then the K becomes
If concentration of reactants is increased by ‘x’,then the K becomes
Options
(a) K + x (b) ln K /x (c) K (d) K/x
Correct Answer:
K
Explanation:
No explanation available. Be the […]
The heat of neutralization of a strong base and a strong acid is 57 kJ.
The heat of neutralization of a strong base and a strong acid is 57 kJ.The released when 0.5 mole of HNO₃ solution is added to 0.20 moles of NaOH solution,is
Options
(a) 11.4 […]
Internal energy is
Internal energy is
Options
(a) partly potential and partly kinetic (b) totally kinetic (c) totally potential (d) none of these
Correct Answer:
partly potential and partly kinetic
Explanation:
No explanation available. Be the […]
Which of the following is the weakest bond
Which of the following is the weakest bond
Options
(a) Hydrogen bond (b) Metallic bond (c) Ionic bond (d) Covalent bond
Correct Answer:
Hydrogen bond
Explanation:
No explanation available. Be the first to […]
Which of the following is not linear
Which of the following is not linear
Options
(a) CO₂ (b) H₂O (c) HF (d) HCl
Correct Answer:
H₂O
Explanation:
No explanation available. Be the first to write the explanation for this question […]
The correct order of electron affinity is
The correct order of electron affinity is
Options
(a) B < C < O > N (b) B > C > N > O (c) O > C > B > N (d) […]
Which of the following is the lightest metal
Which of the following is the lightest metal
Options
(a) Cu (b) Li (c) Au (d) Fe
Correct Answer:
Li
Explanation:
No explanation available. Be the first to write the explanation for this […]
The isotopes of elements were discovered by
The isotopes of elements were discovered by
Options
(a) Thomson (b) Soddy (c) Chadwick (d) Curie
Correct Answer:
Soddy
Explanation:
No explanation available. Be the first to write the explanation for this question […]