Smallest wavelength occurs for
Options
(a) Lyman series (b) Balmer series (c) Paschen series (d) Brackett series
Correct Answer:
Lyman series
Explanation:
No explanation available. Be the first to write the explanation for […]
The compound which does not exist as hydrate form
Options
(a) ferrous sulphate (b) copper sulphate (c) magnesium sulphate (d) sodium chloride
Correct Answer:
sodium chloride
Explanation:
No explanation available. Be the first […]
In the van der Waals equation, ‘a’ signifies
Options
(a) intermolecular attraction (b) intramolecular attraction (c) attraction between molecules and wall of container (d) volume of molecules
Correct Answer:
intermolecular attraction
When KMnO₄ reacts with KBr in alkaline medium gives bromate ion. Then oxidation state of Mn changes from +7 to
Options
(a) 6 (b) 4 (c) 3 (d) 2
Correct Answer:
4
Explanation: […]
Best method to form aromatic iodide is
Options
(a) ArN₂⁺ + HI → (b) RNH₂ + I₂ → (c) ArN₂⁺ + KI → (d) ArN₂⁺ + PI₃ →
Correct Answer:
ArN₂⁺ + KI […]
In which of the following groups are seeds present
Options
(a) Psilophyta (b) Ginkgopsida (c) Lycopodiophyta (d) Byophyta
Correct Answer:
Ginkgopsida
Explanation:
Ginkgo biloba – The only species that has survived to date […]
One of the following is a connecting link between protozoans and poriferans
Options
(a) cliona (b) leucosolenia (c) oscarella (d) proterospongia
Correct Answer:
proterospongia
Explanation:
Protospongia is a single-celled acquatic organism which form […]
The chordate features shared by the non-chordates are
Options
(a) bilateral symmetry (b) triploblastic condition and bilateral symmetry (c) metamerism (d) all of the above
Correct Answer:
all of the above
Explanation:
bilateral […]
Protists obtain their food as
Options
(a) photosynthesis (b) chemosynthesisers (c) heterotrophs (d) both a and c
Correct Answer:
both a and c
Explanation:
No explanation available. Be the first to write the […]
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