What is the oxidation number of Co in [Co(NH₃)₄Cl(NO₂)]
What is the oxidation number of Co in [Co(NH₃)₄Cl(NO₂)]
Options
(a) 4 (b) 3 (c) 2 (d) 5
Correct Answer:
2
Explanation:
[Co(NH₃)₄Cl(NO₂)] → x + 4 * 0 + (-1) + (-1) […]
BHU1999
The waxes are long chain compounds of fatty acids, which belong to the class of
The waxes are long chain compounds of fatty acids, which belong to the class of
Options
(a) alcohols (b) ethers (c) esters (d) acetic acid
Correct Answer:
esters
Explanation:
No explanation available. Be […]
Which of the following explains the sequence of filling the electrons
Which of the following explains the sequence of filling the electrons in different shells
Options
(a) Aufbau principle (b) Hund’s rule (c) Octate rule (d) all of these
Correct Answer:
Aufbau principle
Explanation: […]
To prepare a pure sample on n-hexane using sodium metal as one reactant, the
To prepare a pure sample on n-hexane using sodium metal as one reactant, the other reactant or reactants will be
Options
(a) ethyl chloride and n-butyl chloride (b) ethyl chloride and n-butyl bromide […]
The pollutants released by jet planes are
The pollutants released by jet planes are
Options
(a) fogs (b) smogs (c) colloides (d) aerosols
Correct Answer:
aerosols
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Which of the following structure regulates the entrance and exit of molecules
Which of the following structure regulates the entrance and exit of molecules into and out of the cytoplasm?
Options
(a) cytosol (b) nucleoid (c) chloroplast (d) plasma membrane
Correct Answer:
plasma membrane
Explanation: […]
Bone marrow is absent in
Bone marrow is absent in
Options
(a) fishes (b) birds (c) reptilia (d) amphibia
Correct Answer:
birds
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
In hilly areas, erosion is minimised by
In hilly areas, erosion is minimised by
Options
(a) Terracing (b) Manuring (c) Ploughing (d) Mixed cropping
Correct Answer:
Terracing
Explanation:
No explanation available. Be the first to write the explanation for this […]
Antibiotics are mostly got from
Antibiotics are mostly got from
Options
(a) Fungi (b) Actinomycetes/Bacteria (c) Fungi & Actinomycetes/Bacteria (d) Cyanobacteria
Correct Answer:
Fungi & Actinomycetes/Bacteria
Explanation:
No explanation available. Be the first to write the explanation for […]
Active immunity means
Active immunity means
Options
(a) resistance developed after disease (b) resistance developed before disease (c) increasing rate of heart beat (d) increasing quantity of blood
Correct Answer:
resistance developed after disease
Explanation:
No […]