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The most preferred structure among the following with the lowest energy for $SO_{3}$ is:
A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
Among the following, the pair in which the two species are not isostructural is:
Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?
The correct order of dissociation energy of $N_{2}$ and $N_{2}^{+}$ is:
Which of the following immune responses is responsible for rejection of kidney graft?
Increasing order of bond length is:
Which of the following is a paramagnetic compound?
A molecule that cannot exist is:
The structures of beryllium chloride in solid state and vapour phase, are :
Which of these following methods is the most suitable for disposal of nuclear waste?
Match Column - I with Column - II Column - I Column - II (a) Saprophyte (i) Symbiotic association of fungi with plant roots (b) Parasite (ii) Decomposition of dead organic materials (c) Lichens (iii) Living on living plants or animals (d) Mycorrhiza (iv) Symbiotic association of algae and fungi Choose the correct answer from the option given below (a) (b) (c) (d) (1) (i) (ii) (iii) (iv) (2) (iii) (ii) (i) (iv) (3) (ii) (i) (iii) (iv) (4) (ii) (iii) (iv) (i)
Identify the incorrect statement among the following options:
Amongst the following, which one will have maximum 'lone pair - lone pair' electron repulsions?
Which one of the following is the correct order of decreasing bond enthalpies for the given species?
Select the correct option.
Which of the following set of molecules will have zero dipole moment?
Which of the following pairs share both isoelectronicity and isostructural characteristics? $\text{NO}_3^-$, $\text{CO}_3^{2-}$, $\text{ClO}_3^-$, $\text{SO}_3$
Which one of the following pairs of species have the same bond order?
A series LCR circuit containing 5.0 H inductor, 80 μF capacitor and 40 Ω resistor is connected to 230 V variable frequency AC source. The angular frequencies of the source at which power transferred to the circuit is half the power at the resonant angular frequency are likely to be: