List of practice Questions

Organic farming includes
Oppaneuer oxidation is the reverse process of
Optimum temperature conditions for photosynthesis in $C_{3}$ and $C_{4}$ plants are respectively
Order of size of $sp, sp^2$ and $sp^3$ orbitals is
One shake is equal to
One vertex of an equilateral triangle is $(2,3)$ and the equation of line opposite to the vertex is $x + y = 2$, then the equation of remaining two sides are
Open circulatory system is present in $(i)$ and $(ii)$. Fill the correct option for $(i)$ and $(ii)$.
One of the most resistant biological material present in the exine of pollen grain is
One of the points on the parabola $ y^2 = 12x $ with focal distance 12 is
One of the rectangular components of a vector 80 unit is 40 unit, the other component is
One of the following vector identities which is false will be
One of the following is a Bronsted acid but not a Bronsted base
One of the following is not the causal organism for ringworm,
One of the following is true with respect to $AUG$
One of the acid listed below is formed from $P_2O_3$ and the rest are formed from $P_2O_5$. The acidformed from phosphorus (III) oxide is
One of the following cannot be prepared by Kolbe's electrolytic process ?
One mole of a perfect gas expands isothermally to tentimes its original volume. The change in entropy is
One mole of an ideal gas undergoes a cyclic process $ ABCDA $ as shown in the $ P-V $ diagram, Tire net work done in the process is $ (1\, atm = 10^6 $ dyne $ cm^{-2} $ )
One mole of magnesium in the vapour state absorbed 1200 kJ of energy. If the first and second ionization energies of magnesium are 750 and 1450 $kJ mol^{-1}$ respectively, the final composition of the mixture is
One mole of $1$,$2$-dibromopropane on treatment with $X$ moles of $NaNH_2$ followed by treatment with ethyl bromide gave a $2$-pentyne. The value of $X$ is
One half percent of the population has a particular disease. A test is developed for the disease. The test gives a false positive $3\%$ of the time and a false negative $2\%$ of the time. What is the probability that Amit (a random person) tests positive?
One end of a horizontal thick copper wire of length $2L$ and radius $2R$ is welded to an end of another horizontal thin copper wire of length $L$ and radius $R$. When the arrangement is stretched by applying forces at two ends, the ratio of the elongation in the thin wire to that in the thick wire is
One gas bleaches the colour of flowers by reduction and another gas by oxidation. The gases respectivelyare
One barn is equal to
One can obtain a silica garden if