List of practice Questions

If 150 kJ of energy is needed for muscular work to walk a distance of one km, then how much of glucose one has to consume to walk a distance of provided only 30% energy is available for muscular work. The enthalpy of combustionof glucose is 3000 $kJ mol^{-1}$'
If $2 \alpha =-1-i \sqrt{3}$ and $2 \beta=-1+i \sqrt {3}$, then $5 \alpha^4+5 \beta^4 +7 \alpha ^{-1} \beta ^{-1}$ is equal to
If $1 + \sin\theta + \sin^2\, \theta + ............. $ $to \infty=4+2\sqrt{3},0
If ${^{10}C_{x}} = {^{10}C_{x + 4}}$, find the value of x.
Identify Z in the sequence. $ {CH3CH2CH \,=\, CH2 ->[HBr/H_2O_2] Y }$$ { ->[C_2H_5ONa] Z}$
If $ (1 + i) (1 + 2i) (1 + 3i) ..... (1 + ni) = x + iy,$ then $2\cdot 5 \cdot 10$ $(1 + n^2) =.......$
If $1, log_{81} \left(3^x + 48\right)$ and $log_{9}\left(3^{x} - \frac{8}{3}\right) $ are in $A. P$., then $x$ is equal to
Identify the type of vascular bundle as shown in the figure and select the incorrect statement regarding it.
Identify the wrong statement about meiosis.
Identify $X$, $Y$ and $Z$ in the given reaction: $ {CH_2=CH2->[Br_2][CCl_4]X->[NaCN][2\,moles]Y->[LiAlH_4]Z}$
Identify the plants (from the list $i - vi$) which possess the given type of guard cells (as shown in the diagram) in their leaves.
(i) Grass (ii) Tomato (iii) Banana (iv) Brinjal (v) Soybean (vi) Lily
Identify the simple tissue from the following.
Identify the type of polymer. $ (i) ? $(ii) ?? ?
Identify the parts labelled as $A, B, C$ and $D$ in the given figure and select the correct option from the given codes.
Identify the parts labelled as $A$, $B$, $C$, $D$ and $E$ in the given diagram of a human sperm and select the correct option.
Identify the parts marked as $A , B$ and $C$ in the given figure showing $ATP$ synthesis through chemiosmosis.
Identify the incorrect statement with respect to ozone
Identify the labelled parts $A-D$ in the given figure of human foetus within the uterus.
Identify the labels $A, B, C$ and $D$ in the given structure of $tRNA$ and select the correct option.
Identify the figures and choose the correct option.
Identify the given figures $A, B$ and $C$ and select the correct option.
Identify the given vegetative propagule.
Identify the correct statement from the following.
Identify the correct statement from the following:
Identify the different parts of a typical dicot embryo labelled as $A, B$ and $C$ and select the correct option.