The correct increasing order for bond angles among $${\mathrm{BF}}_3,{\mathrm{PF}}_3$$ and $${\mathrm{ClF}}_3$$ is :

In which one of the following pairs the central atoms exhibit $${\mathrm{sp}}^2$$ hybridization ?

Number of molecules/ions from the following in which the central atom is involved in $${\mathrm{sp}}^3$$ hybridization is ________. $${\mathrm{NO}}_3^{-},{\mathrm{BCl}}_3,{\mathrm{ClO}}_2^{-},{\mathrm{ClO}}_3^{-}$$

Which one of the following molecules has maximum dipole moment?

The correct statement/s about Hydrogen bonding is/are A. Hydrogen bonding exists when H is covalently bonded to the highly electro negative atom. B. Intermolecular H bonding is present in $$o$$-nitro phenol C. Intramolecular $$\mathrm{H}$$ bonding is present in HF. D. The magnitude of $$\mathrm{H}$$ bonding depends on the physical state of the compound. E. H-bonding has powerful effect on the structure and properties of compounds Choose the correct answer from the options given below:

The number of species from the following that have pyramidal geometry around the central atom is _________ $${\mathrm{S}}_2{\mathrm{O}}_3^{2-},{\mathrm{SO}}_4^{2-},{\mathrm{SO}}_3^{2-},{\mathrm{S}}_2{\mathrm{O}}_7^{2-}$$

The shape of carbocation is :

When $${\psi }_{\mathrm{A}}$$ and $${\psi }_{\mathrm{B}}$$ are the wave functions of atomic orbitals, then $${\sigma }^{\ast }$$ is represented by :

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} LIST I (Molecule) LIST II (Shape) A. $$\mathrm{N}{\mathrm{H}}_3$$ I. Square pyramid B. $$\mathrm{Br}{\mathrm{F}}_5$$ II. Tetrahedral C. $$\mathrm{PC}{\mathrm{l}}_5$$ III. Trigonal pyramidal D. $$\mathrm{C}{\mathrm{H}}_4$$ IV. Trigonal bipyramidal Choose the correct answer from the options given below:

Number of $$\sigma$$ and $$\pi$$ bonds present in ethylene molecule is respectively :

Match List I with List II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} LIST I LIST II A. $$\mathrm{ICl}$$ I. T - shape B. $${\mathrm{ICl}}_3$$ II. Square pyramidal C. $${\mathrm{ClF}}_5$$ III. Pentagonal bipyramidal D. $${\mathrm{IF}}_7$$ IV. Linear Choose the correct answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : $${\mathrm{NH}}_3$$ and $${\mathrm{NF}}_3$$ molecule have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of $${\mathrm{NH}}_3$$ is greater than that of $${\mathrm{NF}}_3$$. Reason (R) : In $${\mathrm{NH}}_3$$, the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the $$\mathrm{N}-\mathrm{H}$$ bonds. $$\mathrm{F}$$ is the most electronegative element. In the light of the above statements, choose the correct answer from the options given below :

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} LIST I (Compound/Species) LIST II (Shape/Geometry) A. $$\mathrm{S}{\mathrm{F}}_4$$ I. Tetrahedral B. $$\mathrm{Br}{\mathrm{F}}_3$$ II. Pyramidal C. $$\mathrm{Br}{\mathrm{O}}_3^{-}$$ III. See saw D. $$\mathrm{N}{\mathrm{H}}_4^{+}$$ IV. Bent T-Shape Choose the correct answer from the options given below:

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} LIST I (Molecule/Species) LIST II (Property/Shape) A. $$\mathrm{S}{\mathrm{O}}_2\mathrm{C}{\mathrm{l}}_2$$ I. Paramagnetic B. $$\mathrm{NO}$$ II. Diamagnetic C. $$\mathrm{N}{\mathrm{O}}_2^{-}$$ III. Tetrahedral D. $${\mathrm{I}}_3^{-}$$ IV. Linear Choose the correct answer from the options given below:

If one strand of a DNA has the sequence ATGCTTCA, sequence of the bases in complementary strand is :

Two nucleotides are joined together by a linkage known as :

Which structure of protein remains intact after coagulation of egg white on boiling?

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List - I List - II (A) Glucose/$$\mathrm{NaHC}{\mathrm{O}}_3/\Delta$$ (I) Gluconic acid (B) $$\text{ Glucose }/{\mathrm{HNO}}_3$$ (II) No reaction (C) $$\text{ Glucose }/\mathrm{HI}/\Delta$$ (III) n-hexane (D) Glucose/Bromine water (IV) Saccharic acid Choose the correct answer from the options given below:

Type of amino acids obtained by hydrolysis of proteins is :

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List - I (Bio Polymer) List - II (Monomer) (A) Starch (I) nucleotide (B) Cellulose (II) $$\alpha$$-glucose (C) Nucleic acid (III) $$\beta$$-glucose (D) Protein (IV) $$\alpha$$-amino acid Choose the correct answer from the options given below: