List of practice Questions

Consider the following complex ions, $P, Q$ and $R$. $P=[FeF_6]^{3-},Q=[V(H_2O)_6]^{2+} and \, R=[Fe(H_2O)_6]^{2+} $ The correct order of the complex ions, according to their spin-only magnetic moment values (in $B.M.$) is
$ [Co(NH_3)_5Br)] \,SO_4 $ and $ [Co(NH_3)_5SO_4] \,Br $ are examples of which type of isomerism ?
The movement of cilia and flagella is due to the presence of
An object and its real image are located at distances $25\, cm$ and $40 \,cm$ respectively from the two principal foci of a convex lens. The linear magnification of the image is near to
An ion with mass number $37$ possesses one unit of negative charge. If ion contains $11.1\%$ more neutrons than electrons, the symbol of the ion, $X$, is
An ecologist uses the term biodiversity for the variety of species of
Body of ovule is attached to funicle at a point called
Nerve impulse transmission at neuromuscular junction requires
Pressure sensitises
Which is not a function of progesterone
Among the RNA polymerases, the RNA polymerase-II transcribes
Mammalian kidney is
The compound that does not liberate $CO_2$, on treatment with aqueous sodium bicarbonate solution, is
The hyperconjugative stabilities of tert-butyl cation and 2-butene, respectively, are due to
The carbon-based reduction method is not used for the extraction of
Upon treatment with ammoniacal $H_2 S$, the metal ion that precipitates as a sulphide is
Among $P, Q, R$ and $S$, the aromatic compounds(s) is/are
Acid anhydride on reaction with primary amines give
What is the total number of electrons that can have the values $n=2, l=1, s=1 / 2$ in the electronic configuration $1 s^{2} 2 s^{2} 2 p^{3} ?$
Calculate the wavelength associated with an electron moving with a velocity of $10^{6} m / s$ (mass of $e^{-}=9.1 \times 10^{-31} kg,\, \left. h=6.6 \times 10^{-34} kg\, m ^{2} s ^{-1}\right)$
Which of the following pairs is not correctly matched?
Above the Boyle temperature, the compressibility factor of the real gases, $ Z $ is
The bond order of $N _{2}^{+}$on the basis of molecular orbital theory is [Atomic number of $N =7$ ]
A uniform rope of mass $ 0.1 \,kg $ and length $ 2.45 \,m $ hangs from a ceiling. The time taken by a transverse wave to travel the full length of the rope is
A thermodynamic state of a given sample of an ideal gas is completely described, if its