List of practice Questions

What is the packing efficiency of simple cubic lattice?

When blood cells are placed in 1%(W/V) NaCl aquem solution

Decreasing order of freezing point of 0.1 M aqueous solution of following will be
(A) K₄[fe(CN)₆] 
(B) K₂SO₄
(C) NH₂CONH₂ 
(D) ALCL₃ 
(E) HCL 
Choose the correct answer from the option given beloW

Osmotic pressure of solution formed by mixing 50 ml of 0.2 M urea and 50 ml of 0.4 m glucose aqueous solution at 298 K will be : (R=0.083 L atm K^-1 mol^-1)

Degree of dissociation, when molar conductivity of X at its concentration C is 24.14 and its limiting molar conductivity is 48.28 will be

E_cell for the given cell pt(s)/Br₂(1)/Br^-(0.1 M)//Cl^-(0.01 M)/Cl₂(g) (1 atm)/Pt(s) [Given E_br2/Br-=+1.09 V,E Cl₂/Cl-=1.36 V] at 298 K is

If we use molten NaCl, the products of electrolysis are ____.

t_99.9% with respect to t_99% for a first order reaction is:

Rate of a reaction changes from 2.48 x 10^-3 mol sec^-1 to 4.96x 10^-3 mol sec^-1 when concentration of reactant, is changes from 0.6M to 2.4 M respectively, the order of reaction is

Coagulating power of an ion for a colloid solution depends on

Which of the following sols are correctly matched with their corresponding charges?
(A) Cr(OH)₃ sol: negatively changes sol
(B) TiO₂ sol: positively charges sol
(C) CdS sol : positively charged sol
(D) Gum : negatively sol
(E) Silver sol : positively charged sol
Choose the correct answer from the option given below

Match List -I with List-II

	List -I		List-II
A	Gel	I	Hair cream
B	Foam	II	Dust
C	Emulsion	III	Cheese
D	Aerosol	IV	Whipped cream

Choose the correct answer from the option given below

Match List -I with List-II

	List -I		List-II
A	Urease	I	Maltose
B	Maltase	II	Glucose and Fructose
C	Invertase	III	NH3 and CO2
D	Diastase	IV	Glucose

Choose the correct answer from the option given below

When dilute aqueous solution of KI (excess) is added to AgNO₃ solution, the charge on the Agl colloidal, particles formed will be

Match List -I with List-II

	List -I		List-II
A	Kaolinite	I	FeCO3
B	Siderite	II	ZnCO3
C	Malachite	III	[AL2(OH)4Si2 O5]
D	Colamine	IV	CuCO3.Cu(OH)2)

Choose the correct answer from the option given below

Ferric oxide in blast furnace's upper half is mainly reduced by:

In a reaction:\( MnO_4^- + 8H^+ + 5e \, \overset{A}⇢ + H_2O\)
A stands for:

Second most student element in alloy misch metal is:

A divalent ion of ‘V’ (Atomic No.-23) in aqueous solution is:

Increasing order of oxidation states of transition metal oxides will be
(A) $TiO_2$
(B) $MnO_4^{-}$
(C) $VO_2^{+}$
(D) $CrO_4 ^{2-}$
(E) $Ni (CO)4$
Choose the correct answer from the options given below:

$[NiCl_2(PPh_3)_2]$ is named as:

Inner orbital complex among the following is :
(A) $[Co(NH_3)_6]^{3+}$
(B) $[CoF_6]^{3-}$
(C) $[Ni(CN)_4]^{2-}$
(D) $[MnCl_6]^{3-}$
(E) $[FeF_6]^{3-}$
Choose the correct answer from the options given below:

Identify transition metal complexes which are not octahedral in shape.
(A) $[Co(NH_3)_6]^{3+}$
(B) $[Ni(CO)_4]$
(C) $[COCI(NH_3)_5]^{2+}$
(D)$ [CoCl_2(NH_3)_4]^{+}$
(E)$[PtCl_4]^{2-}$
Choose the correct answer from the options given below:

These structures represent which particular kind of halides :

Which of the following haloalkanes reacts with aqueous KOH most easily?