Oxidation number of iron in [Fe(CN)₆]⁴⁻ is
Oxidation number of iron in [Fe(CN)₆]⁴⁻ is
Options
(a) 2 (b) 3 (c) -3 (d) -4
Correct Answer:
2
Explanation:
No explanation available. Be the first to write the explanation for this question […]
AMU1998
Oxidation numbers of carbon in CH₂Cl₂,CO₂ and CO₃²⁻ are respectively
Oxidation numbers of carbon in CH₂Cl₂,CO₂ and CO₃²⁻ are respectively
Options
(a) 0,4,4 (b) 2,2,-2 (c) 4,4,4 (d) -4,4,2
Correct Answer:
0,4,4
Explanation:
No explanation available. Be the first to write the explanation […]
The communities of primary succession are called as
The communities of primary succession are called as
Options
(a) sub-sere (b) mesosere (c) pioneer sere (d) none of these
Correct Answer:
pioneer sere
Explanation:
No explanation available. Be the first to write […]
Which one of the following is the food chain operating in ponds, lakes or sea?
Which one of the following is the food chain operating in ponds, lakes or sea?
Options
(a) grass → insects → frog → birds (b) alge(phytoplanktons) → small animals (zooplanktons) → fish → […]
Which polymer is used for making magnetic recording tapes
Which polymer is used for making magnetic recording tapes
Options
(a) Dacron (b) Acrilan (c) Glyptal (d) Bakelite
Correct Answer:
Dacron
Explanation:
Dacron (polymer of terephthalic acid and ethylene glycol) is used for […]
In Lassaigne’s test a violet colour obtained indicates the presence of
In Lassaigne’s test a violet colour obtained indicates the presence of
Options
(a) nitrogen (b) sulphur (c) halogen (d) none of the above
Correct Answer:
sulphur
Explanation:
S + 2Na → Na₂S. Na₂S […]
Which of the following is low boiling liquid
Which of the following is low boiling liquid
Options
(a) HF (b) HCl (c) HBr (d) HI
Correct Answer:
HF
Explanation:
No explanation available. Be the first to write the explanation for this […]
Hereditary characteristic are passed on from parents to chlidren through
Hereditary characteristic are passed on from parents to chlidren through
Options
(a) gametes (b) genes (c) mutants (d) enzymes
Correct Answer:
genes
Explanation:
No explanation available. Be the first to write the explanation […]
Which of the following amino acids is basic in nature
Which of the following amino acids is basic in nature
Options
(a) Serine (b) Glutamine (c) Arginine (d) none of these
Correct Answer:
Arginine
Explanation:
No explanation available. Be the first to write […]
Which of the following is a chlorofluorocarbon?
Which of the following is a chlorofluorocarbon?
Options
(a) CFSO₂ (b) CF₂CL₂ (c) FCLCO₂ (d) CIF₂C
Correct Answer:
CF₂CL₂
Explanation:
No explanation available. Be the first to write the explanation for this question […]