List of practice Questions

Given that $n$ is odd, the number of ways in which three numbers in $A$.$P$. can be selected from $1$, $2$, $3$, $4$, $.........n$ is
Given that $p = \tan \, \alpha+ \tan \, \beta,$ and $q = \cot \, \alpha + \cot \, \beta$ ; then what is $\left( \frac{1}{p} - \frac{1}{q} \right)$ equal to ?
Given that $\tan \, \theta = m \neq 0, \tan \, 2 \theta = n \neq 0$ and $\tan \, \theta + \tan \, 2 \theta = \tan \, 3 \theta$, then which one of the following is correct ?
Given pie-diagram represents the relative contribution of various greenhouse gases to total global warming. Identify the gases $P$, $Q$, $R$ and $S$.
Given table shows the $CO_{2}$ compensation point and optimum $CO_{2}$ concentration for photosynthesis for $C_{3}$ and $C_{4}$ plants. Select the correct values for $A$ and $B$.
Given that $n A.M.'s$ are inserted between two sets of numbers $a, 2b$ and $2 a, b$, where $a, b \in R$. Suppose further that $mth$ mean between these sets of numbers is same, then the ratio, $a : b$ equals
Given $e = 2.72, e^2 =7.39 ,e^3 = 20.09 , e^4 = 54.60 $ the approximate value of $\int\limits_{0}^{4} e^x dx$ using Simpson?? rule and taking $h=1$ is
Given figure is of filamentous blue green alga Nostoc. Identify die parts marked as $A$ and $B$ and select the correct option.
Given is the ultrastructure of an animal cell. Identify the parts marked as $A, B, C$ and $D$
Given below is an incomplete flow chart showing influence of hormones on gametogenesis in males. Observe the flow chart carefully and identify $A$, $B$ and $C$.
Given below is the diagram of human lymphatic system, where $A$, $B$, $C$ and $D$ are lymphoid organs. Select incorrect option regarding the lymphoid organs labelled as $A$, $B$, $C$ and $D$.
Given diagram represents the components of a transcription unit. Select the correct answer regarding it.
Given below are two figures of Daniell cell $(X)$ and $(Y)$. Study the figures and mark the incorrect statement from the following.
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Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?
Given below is a list of different steps $(i-vi)$ involved in respiration. (i) Utilisation of $O_2$ by the cells for catabolic reactions. (ii) Transport of gases by the blood. (iii) Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ is released out. (iv) Release of resultant $CO_2$. (v) Diffusion of $O_2$ and $CO_2$ between blood and tissues. (vi) Diffusion of gases ($O_2$ and $CO_2$) across alveolar tissues. Select an option which has correct sequence of all the steps.
Given below is a table of factors affecting microbial decomposition. ($'+'$ means 'favouring' and $'-'$ means inhibiting or lowering). Select the correct option.
Given below are a few statements regarding somatic hybridisation. Choose the correct statements. (i) Protoplasts of different cells of the same plant are fused. (ii) Protoplasts from cells of different species can be fused. (iii) Treatment of cells with cellulase and pectinase is mandatory. (iv) The hybrid protoplast contains characters of only one parental protoplast.
Given below are some differences between primary air pollutants and secondary air pollutants. Which one of the following is an incorrect difference?
Given below are some of the stages of the hydrarch. A. Marsh - meadow stage B. Reed-swamp stage C. Submerged plant stage D. Phytoplankton stage E. Free floating plant stage Select the option that represents the correct sequence of these stages.
Give the monomers of Nylon-66
Given $4$ flags of different colours, how many different signals can be generated, if a signal requires the use of $2$ flags one below the other?
Given $5$ different green dyes, four different blue dyes and three different red dyes, the number of combinations of dyes which can be chosen taking atleast one green and one blue dye is
Given are names of some transgenic animals. Identify the name of transgenic sheep.
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Give IUPAC name of Acetone