If 1,3-dibromopropane reacts with Zinc and Nal ,the product obtained is
Options
(a) propene (b) propane (c) cyclopropane (d) hexane
Correct Answer:
cyclopropane
Explanation:
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In a cubic cell,the contribution of an atom at a face of the unit cell is
Options
(a) ½ (b) 1 (c) 2 (d) 3
Correct Answer:
½
Explanation:
No explanation available. Be […]
The ionic radii of isoelectronic species N³⁻, O²⁻ and F⁻ are in the order
Options
(a) 1.36, 1.40, 1.71 (b) 1.36, 1.71, 1.40 (c) 1.71, 1.40, 1.36 (d) 1.71, 1.36, 1.40
Correct Answer: […]
Amongest the following,the compound that can most readily get sulphonated is
Options
(a) Benzene (b) toluene (c) Nitrobenzene (d) chlorobenzen
Correct Answer:
toluene
Explanation:
No explanation available. Be the first to write the […]
During the electrolysis of H₂O, volume of H₂ and O₂ are released in the ratio
Options
(a) 2:16 (b) 16:1 (c) 8:1 (d) 2:1
Correct Answer:
2:1
Explanation:
No explanation available. Be the […]
The number of water molecules in gypsum and in plaster of paris are respectively
Options
(a) 2 and 1/2 (b) 5 and 2 (c) 2 and 1 (d) 7 and 2
Correct Answer: […]
The volume of water to be added to N/2 HCl to prepare 500 cm³ of N/10 solution is
Options
(a) 450 cm³ (b) 100 cm³ (c) 45 cm³ (d) 400 cm³
Correct Answer: […]
When a strong beam of light is passed through a colloidal solution, the light will
Options
(a) give a rainbow (b) be reflected (c) be scattered (d) pass unchanged
Correct Answer:
be scattered
Aqueous solution of Cu (II) gives an intense blue solution with ammonia,which is due to
Options
(a) [Cu(NH₃)₄]²⁺ (b) Cu(OH)₂ (c) [Cu(H₂O₆)]²⁺ (d) Cu(NH₃)₂
Correct Answer:
[Cu(NH₃)₄]²⁺
Explanation:
No explanation available. Be the […]
The coordination number of an atom in the simple cubic unit cell in a crystal lattice is
Options
(a) 3 (b) 2 (c) 4 (d) 6
Correct Answer:
6
Explanation:
No explanation available. […]
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