List of practice Questions

Phylum of Taenia solium is :
Synapsis occurs in ...... phase of meiosis :
NH
The reaction,$2SO_{2(g)} + O_{2(g)} \leftrightharpoons 2SO_{3(g)}$ is carried out in a $1\, dm^3$ vessel and $2 \,dm^3$ vessel separately. The ratio of the reaction velocities will be :
An artificial radioactive isotope gave ${^{14}_{7}N}$ after two successive $\beta$ -particle emissions. The number of neutrons in the parent nucleus must be :
According to oparin, which one of the following was not present in the primitive atmosphere of the earth
In glycolysis, during oxidation electrons are removed by
The correct statement in respect of protein haemoglobin is that it
The frequency of radiation emitted when the electron falls from $n = 4$ to $n = 1$ in a hydrogen atom will be (Given ionisation energy of $H = 2.18\times 10^{18} $J $atom^{-1}$ and $h = 6.625 \times 10^{-34} Js)$
What is a keystone species?
Uricotelism is found in
The telomeres of eukaryotic chromosomes consist of short sequences of
After a mutation at a genetic locus the character of an organism changes due to the change in
One of the following is a very unique feature of the mammalian body
In Arthopoda, head and thorax are often fused to form cephalothorax, but in which one of the following classes, is the body divided into head, thorax and abdomen ?
When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is
A round disc of moment of inertia $I_2$ about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia $I_1$ rotating with an angular velocity $\omega$ about the same axis. The final angular velocity of the combination of discs is
The inflorescence in Ocimum is
Which of the following is a dual purpose breed?
What are X and Y in the reaction $ {{C}_{2}}{{H}_{4}}+{{H}_{2}}S{{O}_{4}}\xrightarrow{80{{\,}^{o}}C}X({{H}_{2}}O./\Delta a)Y $
If the boiling point of ethanol (molecular weight = 46) is $ \text{78}{{\,}^{\text{o}}}\text{C,} $ what is the boiling point of diethyl ether ? (molecular weight =74)
Gun metal is an alloy of:
The values of four quantum numbers of valence electron of an element are $ n=4,l=0,m=0 $ and $ s=+\frac{1}{2}. $ The element is:
The number of oxygen atoms bonded to each phosphorus atom in P$_4O_{10}$ is
In your opinion which is most effective way to conserve the plant diversity of an area