List of practice Questions

Addition of mineral acid to an aqueous solution of Borax, the following compound is formed
Which of the following element forms $p_{\pi} - p_{\pi}$ bond with itself ?
Which of the following structure of a molecule is expected to have three bond pairs and one lone pair of electrons ?
If $tan^{-1} \,x + tan^{-1} \,y = \frac{4\pi}{5}$, then $cot^{-1}\, x + cot^{-1} \,y$ is equal to
The co-ordination number and the oxidation state of the element $'M'$ in the complex $[ M(en)_{2}(C_{2}O_{4})]NO_{2}$ $\{$ where (en) is ethane-1,2-diamine) are, respectively
Which of the following aqueous solution has highest freezing point ?
Which of the following is the correct electron dot structure of $N_2O$ molecule ?
Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP ?
Select the mismatch :
The S.I. unit of specific heat capacity is
Which of the following are found in extreme saline conditions ?
Which of the following components provides sticky character to the bacterial cell ?

Viroids differ from viruses in having:

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen ?
Which among these is the correct combination of aquatic mammals ?
In case of poriferans, the spongocoel is lined with flagellated cells called:
An important characteristic that Hemichordates share with Chordates is :
Given the system of straight lines a $(2x + y - 3) + b(3x + 2y - 5) = 0$, the line of the system situated farthest from the point $(4, -3)$ has the equation

Young's modulus is defined as the ratio of

The output of a step down transformer is measured to be $48\, V$ when connected to a ${12 \, W}$ bulb. The value of peak current is
The speed of light is vacuum is equal to
The electronegativities of $C, N, Si$ and $P$ are in the order of
The mean energy of a molecule of an ideal gas is
Which one of the following is not a common component of photo-chemical smog ?
A coil of inductive reactance $1/ \sqrt{3}\, O$ and resistance $1 \, \Omega$ is connected to a $200\, V$, $50\,Hz \,A.C.$ supply. The time lag between maximum voltage and current is