Which one among the following is the correct option for right relationship between \( C _{ P } \) and \( C _{ V } \) for one mole of ideal gas?
(A) \( C _{ P }+ C _{ V }= R \)

(B) \( C _{ P }- C _{ V }= R \)
(C) \( C _{ P }= RC _{ V } \)
(D) \( C _{ V }= RC _{ P } \)

Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is :
(A) Calcium chloride
(B) Strontium chloride
(C) Magnesium chloride
(D) Beryllium chloride

An organic compound contains \( 78 \% \) (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of \( C \) is \( 12, H \) is \( 1 \) ]
(A) \( CH \)
(B) \( CH _{2} \)
(C) \( CH _{3} \)
(D) \( CH _{4} \)

The major product formed in dehydrohalogenation reaction of \( 2-Bromo \) pentane is \( Pent-2-ene \) . This product formation is based on ?
(A) Saytzeff's Rule
(B) Hund’s Rule
(C) Hofmann Rule
(D) Huckel’s Rule

What is the IUPAC name of the organic compound formed in the following chemical reaction ? \( \text{Acetone} \ce{->[(i)C_2H_5MgBr, \text{dry Ether}][(ii)H_2O, H^+]} \text{Product} \)
(A) 2-methyl propan-2-ol
(B) pentan-2-ol
(C) pentan-3-ol
(D) 2-methyl butan-2-ol

Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.
(A) Noble gases are sparingly soluble in water.

The \( pK _{ b } \) of dimethylamine and \( pK _{ a } \) of acetic acid are \( 3.27 \) and \( 4.77 \) respectively at \( T ( K ) \) . The correct option for the \( pH \) of dimethylammonium acetate solution is :
(A) \( 8.50 \)
(B) \( 5.50 \)
(C) \( 7.75 \)
(D) \( 6.25 \)

The right option for the statement ''Tyndall effect is exhibited by'', is :
(A) NaCl solution
(B) Glucose solution
(C) Starch solution
(D) Urea solution

Statement I : Acid strength increases in the order given as \( HF < < HCl < < HBr < < HI \) . Statement II : As the size of the elements \( F, Cl, Br, I \) increases down the group, the bond strength of \( HF, HCl, HBr \) and \( HI \) decreases and so the acid strength increases. In the light of the above statements, choose the correct answer from the options given below.
(A) Both Statement I and Statement II are true.
(B) Both Statement I and Statement II are false.
(C) Statement I is correct but Statement II is false.
(D) Statement I is incorrect but Statement II is true.

Ethylene diaminetetraacetate (EDTA) ion is :
(A) Hexadentate ligand with four ''O'' and two ''N'' donor atoms
(B) Unidentate ligand
(C) Bidentate ligand with two ''N'' donor atoms
(D) Tridentate ligand with three ''N'' donor atoms

Choose the correct option for graphical representation of Boyle’s law, which shows a graph of pressure vs. volume of a gas at different temperatures:
(A)

(B)

(C)

(D)

The structures of beryllium chloride in solid state and vapour phase, are :
(A) Chain and dimer, respectively
(B) Linear in both
(C) Dimer and Linear, respectively
(D) Chain in both

Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature ?
(A) Electrolysis
(B) Chromatography
(C) Distillation
(D) Zone refining

The compound which shows metamerism is :
(A) \( C _{5} H _{12} \)
(B) \( C _{3} H _{8} O \)
(C) \( C _{3} H _{6} O \)
(D) \( C _{4} H _{10} O \)