Number of electron deficient molecules among the following PH3, B2H6, CCl4, NH3, LiH and BCl3 is

The correct order of bond orders of $${C_2}^{2-}$$, $${N_2}^{2-}$$ and $${O_2}^{2-}$$ 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-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 (hybridization ; shape) (A) XeO$${}_3$$ (I) sp$${}^3$$d ; linear (B) XeF$${}_2$$ (II) sp$${}^3$$ ; pyramidal (C) XeOF$${}_4$$ (III) sp$${}^3$$d$${}^3$$ ; distorted octahedral (D) XeF$${}_6$$ (IV) sp$${}^3$$d$${}^2$$ ; square pyramidal 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-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) List II (Shape) (A) BrF$${}_5$$ (I) bent (B) [CrF$${}_6$$]$${}^{3-}$$ (II) square pyramidal (C) O$${}_3$$ (III) trigonal bipyramidal (D) PCl$${}_5$$ (IV) octahedral Choose the correct answer from the options given below :

Arrange the following in increasing order of their covalent character. A. $${\mathrm{CaF}}_2$$ B. $${\mathrm{CaCl}}_2$$ C. $${\mathrm{CaBr}}_2$$ D. $${\mathrm{CaI}}_2$$ Choose the correct answer from the options given below.

Given below are two statements. Statement I: $${\mathrm{O}}_2,{\mathrm{Cu}}^{2+}$$, and $${\mathrm{Fe}}^{3+}$$ are weakly attracted by magnetic field and are magnetized in the same direction as magnetic field. Statement II: $$\mathrm{NaCl}$$ and $${\mathrm{H}}_2\mathrm{O}$$ are weakly magnetized in opposite direction to magnetic field. In the light of the above statements, choose the most appropriate 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-1wig{font-weight:bold;text-align:left;vertical-align:top} .tg .tg-0lax{text-align:left;vertical-align:top} List - I List - II (A) $${\psi }_{\mathrm{MO}}={\psi }_{\mathrm{A}}-{\psi }_{\mathrm{B}}$$ (I) Dipole moment (B) $$\mu =Q\times r$$ (II) Bonding molecular orbital (C) $$\frac{{\mathrm{N}}_{\mathrm{b}}-{\mathrm{N}}_{\mathrm{a}}}{2}$$ (III) Anti-bonding molecular orbital (D) $${\psi }_{\mathrm{MO}}={\psi }_{\mathrm{A}}+{\psi }_{\mathrm{B}}$$ (IV) Bond order Choose the correct answer from the options given below :

Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule?

Number of lone pairs of electrons in the central atom of $${\mathrm{SCl}}_2,{\mathrm{O}}_3,{\mathrm{ClF}}_3$$ and $${\mathrm{SF}}_6$$, respectively, are :

Sugar moiety in DNA and RNA molecules respectively are

The structure of protein that is unaffected by heating is

When sugar 'X' is boiled with dilute H2SO4 in alcoholic solution, two isomers 'A' and 'B' are formed. 'A' on oxidation with HNO3 yields saccharic acid where as 'B' is laevorotatory. The compound 'X' is :

Stability of $$\alpha$$-Helix structure of proteins depends upon

Given below are two statements. Statement I : Maltose has two $$\alpha$$-D-glucose units linked at C1 and C4 and is a reducing sugar. Statement II : Maltose has two monosaccharides : $$\alpha$$-D-glucose and $$\beta$$-D-glucose linked at C1 and C6 and it is a non-reducing sugar. In the light of the above statements, choose the correct answer from the options given below :

L-isomer of a compound 'A' (C4H8O4) gives a positive test with [Ag(NH3)2]+. Treatment of 'A' with acetic anhydride yields triacetate derivative. Compound 'A' produces an optically active compound (B) and an optically inactive compound (C) on treatment with bromine water and HNO3 respectively. Compound (A) 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-1wig{font-weight:bold;text-align:left;vertical-align:top} .tg .tg-0lax{text-align:left;vertical-align:top} List - I Enzyne List - II Conversion of A. Invertase I. Starch into maltose B. Zymase II. Maltose into glucose C. Diastase III. Glucose into ethanol D. Maltase IV. Cane sugar into glucose Choose the most appropriate answer from the options given below :

Which one of the following is a water soluble vitamin, that is not excreted easily?

A polysaccharide 'X' on boiling with dil H2SO4 at 393 K under 2-3 atm pressure yields 'Y'. 'Y' on treatment with bromine water gives gluconic acid. 'X' contains $$\beta$$-glycosidic linkages only. Compound 'X' is :

The sugar produced after complete hydrolysis of DNA is

During the denaturation of proteins, which of these structures will remain intact?