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The plastid that stores xanthophyll is known as

Genus represents

Which of the following plant growth regulators is used as herbicide?

Which of the following represents the correct sequence of arrangement of bones in the lower limb of humans?

Sphenopsida class belongs to

Which pigment has absorption peak at 700 nm in the photosynthetic reaction centre PS I (P700)?

Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage?

Cell theory was formulated by

Mad cow disease is caused by

Phyllotaxy is the pattern of arrangement of

Mitochondrial inner membrane encloses

Given below are two statements: Statement I: In gymnosperms, the male and female gametophytes remain within the sporangia. Statement II: In gymnosperms, seeds are not covered. In the light of the above statements, choose the most appropriate answer from the options given below:

Match the vitamins in List I with their sources in List II
List I:
A. vitamin A
B. vitamin $B_{12}$
C. vitamin E
D. vitamin K
List II:
I. meat
II. sunflower oil
III. green leafy vegetables
IV. carrots
Choose the correct answer from the options given below.

Consider the reversible processes for 1.0 mol of an ideal gas as shown in the figure. $W_{1}$, $W_{2}$, $W_{3}$ and $W_{4}$ represent work done (in calories) in the processes 1, 2, 3 and 4, respectively; $\Delta U_{2}$ and $\Delta U_{4}$ are changes in the internal energy for the processes 2 and 4, respectively. [use $R=2~cal~K^{-1}~mol^{-1}$] The correct option is

The correct statement is

According to crystal field theory, the correct order of ligands with respect to their decreasing order of field strength is

In potash alum, the ratio of $K^{+}$ and $SO_{4}^{2-}$ ions is

A 1:3 electrolyte in an aqueous solution is

The following carbocation is stabilized by the interaction of the empty p orbital with

Consider the following schematic plots of orbital wavefunction $(\psi_{r})$ against distance (r) from the nucleus. The figure representing two radial nodes in the orbital is