List of practice Questions

7.5 grams of a gas occupy 5.6 litres of volume at STP. The gas is (Atomic weights of C, N and O are 12, 14 and 16 respectively)
6 coins are tossed together 64 times. If throwing a head is considered as a success then the expected frequency of at least 3 successes is
Function of mitochondria is
Net gain of ATP in prokaryotes from a molecule of glucose when oxidize is of glucose when oxidized is
Acoustic spots in frog is present in
Difference between bone & cartilage is
Separation of amino acid & carboxylic groups is called
Structural unit of human kidney is
Minimum regeneration power is present in
Which of the following is purely motor cranial nerve?
50 mL of gas A effuses through a pin hole in 146 seconds. The same volume of $CO_2$ under identical condition effuses in 115 seconds. The molar mass of A is
Chlorofluorocarbons are being replaced by
$5\,\cos^{-1}\left(\frac{1-x^2}{1+x^2}\right) +7\,\sin^{-1}\left(\frac{2x}{1+x^2}\right)-4\,\tan^{-1}\left(\frac{2x}{1+x^2}\right)-\tan^{-1}x=5\pi$ , then x is equal to
$4\,tan^{-1} \frac{1}{5} -tan^{-1} \frac{1}{70} + tan^{-1} \frac{1}{99}$ is equal to
$4 a^2 \, \sin^2 \left( \frac{3\pi}{4} \right) - 3 [a\, \tan \,225^\circ ]^2 + [ 2a \, \cos \, 315^\circ ]^2$
4.48 litres of an ideal gas at STP requires 12.0 calories to raise its temperature by 15$\circ$C at constant volume. The $C_p$ of the gas is
$3\,\tan^{-1}a$ is equal to
Maximum surface area of circulating system is seen in
Layers of an ovum from outside to inside is
Struggle for existence and survival of the fittest theories were given by
Deamination occurs in
Dental formula of rabbit is
Regeneration of liver is
Which of the following statements are correct? (i) venom of cobra is neurotoxic (ii) venom of sea snake is neurotoxic (iii) venom of viper is haemotoxic
In housefly pseudotracheae is found in