Formalin is a
Formalin is a
Options
(a) 100% solution of HCHO (b) 40% solution of HCHO (c) 60% solution CH₃CHO (d) 40% solution of CH₃CHO
Correct Answer:
40% solution of HCHO
Explanation:
No explanation available. […]
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Which of the following will not undergo Hell-Volhard-Zelinsky reaction
Which of the following will not undergo Hell-Volhard-Zelinsky reaction
Options
(a) Acetic acid (b) Formic acid (c) Propionic acid (d) 2-Methyl propionic acid
Correct Answer:
Formic acid
Explanation:
Carboxylic acid which contain α […]
The number of sigma and pi-bonds in but-1-ene-3-yne are
The number of sigma and pi-bonds in but-1-ene-3-yne are
Options
(a) 5 sigma and 5pi (b) 7 sigma and 3pi (c) 8 sigma and 2pi (d) 7 sigma and 2pi
Correct Answer:
7 […]
Which of the following cations has the maximum number of unpaired electrons
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 […]
The predominant intermolecular forces in HF is due to
The predominant intermolecular forces in HF is due to
Options
(a) dipole-induced dipole interaction (b) hydrogen bond formation (c) dispersion interaction (d) dipole-dipole interaction
Correct Answer:
hydrogen bond formation
Explanation:
In intermolecular hydrogen […]
Anomalous behaviour of nitrogen is due to
Anomalous behaviour of nitrogen is due to
Options
(a) small size and high electronegativity (b) non-availability of d-orbitals in the valency shell (c) ease of multiple bond formation (d) all of the above
Correct […]
The ore horn silver corresponds to
The ore horn silver corresponds to
Options
(a) AgCl (b) AgBr (c) Ag₂S (d) 3Ag₂S.Sb₂S₃
Correct Answer:
AgCl
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
The mixture of n-hexane and n-heptane is an example of
The mixture of n-hexane and n-heptane is an example of
Options
(a) real solution (b) dilute solution (c) ideal solution (d) non-real solution
Correct Answer:
ideal solution
Explanation:
An ideal solution is […]
The electronic configuration of chalcogens is
The electronic configuration of chalcogens is
Options
(a) ns²np² (b) ns²np³ (c) ns²np⁴ (d) ns²np¹
Correct Answer:
ns²np⁴
Explanation:
The elements of group VI A of the periodic table are called chalcogens . […]
Each unit cell of NaCl consists of 6 chlorine atoms and
Each unit cell of NaCl consists of 6 chlorine atoms and
Options
(a) 13 Na atoms (b) 14 Na atoms (c) 8 Na atoms (d) 6 Na atoms
Correct Answer:
6 Na atoms