Which of the following is not a Pteridophyte?
- ASelaginella
- BEquisetum
- CSalvinia
- DPolytrichum
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The equation of the tangent to the curve $6y = 7 - x^3$ at the point $(1, 1)$ is:
Enzymes are
If $f(x) = \sin x + \cos x$,then $f\left(\frac{\pi}{4}\right) f^{(iv)}\left(\frac{\pi}{4}\right)$ is equal to
Match the taxonomic categories given in column $I$ with their feature given in column $II$.
Column $I$ Column $II$ $A$. Taxon $I$. Basic unit of classification $B$. Species $II$. $A$ taxonomic group of any rank $C$. Phylum $III$. Division is the same category in case of plants $D$. Genus $IV$. Identified based on a number of similar characters $E$. Order $V$. Group of related species having more characters in common with other species
| Column $I$ | Column $II$ |
| $A$. Taxon | $I$. Basic unit of classification |
| $B$. Species | $II$. $A$ taxonomic group of any rank |
| $C$. Phylum | $III$. Division is the same category in case of plants |
| $D$. Genus | $IV$. Identified based on a number of similar characters |
| $E$. Order | $V$. Group of related species having more characters in common with other species |
Which of the following compounds will be most easily attacked by an electrophile?
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