How much quick lime can be obtained from 25g of CaCO₃?
How much quick lime can be obtained from 25g of CaCO₃?
Options
(a) 56 g (b) 14 g (c) 60 g (d) 28 g
Correct Answer:
14 g
Explanation:
No explanation available. Be […]
Questions
The oxidation state of I in H₄IO₆⁻ is
The oxidation state of I in H₄IO₆⁻ is
Options
(a) 1 (b) -1 (c) 7 (d) 5
Correct Answer:
7
Explanation:
No explanation available. Be the first to write the explanation for this […]
The number of moles of acidified KMnO₄ required to oxidise one mole
The number of moles of acidified KMnO₄ required to oxidise one mole of ferrous oxalate (FeC₂O₄) is
Options
(a) 5 (b) 3 (c) 0.6 (d) 1.5
Correct Answer:
0.6
Explanation:
No explanation available. […]
The indicator used in the titration of iodine against sodium thiosulphate is
The indicator used in the titration of iodine against sodium thiosulphate is
Options
(a) starch (b) K₃ [Fe(CN)₆] (c) K₂CrO₄ (d) potassium
Correct Answer:
starch
Explanation:
No explanation available. Be the first to […]
In which of the following reaction Kp > Kc
In which of the following reaction Kp > Kc
Options
(a) PCl₃ + Cl₂ → PCl₅ (b) N₂ + 3H₂ → 2NH₃ (c) 2SO₃ → O₂ + 2SO₂ (d) H₂ + I₂ → […]
A mixture of two moles of carbon monoxide and one mole of oxygen
A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to covert carbon monoxide to carbon dioxide. If ΔH is the enthalpy change and ΔE is […]
Which of the following reaction is endothermic
Which of the following reaction is endothermic
Options
(a) N₂ + O₂ → 2NO (b) H₂ + Cl₂ → 2HCl (c) H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O (d) none of these
Correct […]
The molecular geometry of BF₃ is
The molecular geometry of BF₃ is
Options
(a) tetrahedral (b) pyramidal (c) square plannar (d) trigonal plannar
Correct Answer:
trigonal plannar
Explanation:
No explanation available. Be the first to write the explanation for […]
All the s-block elements of the periodic table are placed in the groups….
All the s-block elements of the periodic table are placed in the groups….
Options
(a) IA and IIA (b) IIIA and IVA (c) B sub group (d) VA to VIIA
Correct Answer:
IA […]
The long form of periodic table is based on
The long form of periodic table is based on
Options
(a) mass of the atom (b) atomic number (c) shapes of he atom (d) electronegative
Correct Answer:
atomic number
Explanation:
No explanation available. […]