List of practice Questions

What is the major product formed in the reaction given below?

What is the intermediate in the following reaction?
RCN + SnCl$_2$ + HCl $\longrightarrow$ RCHO
Jones reagent is used in which of the following conversions?

Match the following
List – I (Source)             List – II (Carboxylic Acid)
 

SourceCarboxylic Acid
A. VinegarI. HCOOH
B. ButterII. CH3CH2COOH
C. AntsIII. CH3COOH
 IV. CH3CH2CH2COOH
In which of the following reactions phosphine is not formed?
Which of the following is/are correct?
i. Cr$_2$O$_3$ is an acidic oxide
ii. Mo(VI) and W(VI) are more stable than Cr(VI)
iii. All Cu(II) halides are known except iodide
iv. The E$^\circ$ value for Cr$^{3+}$/Cr$^{2+}$ is much more positive than Mn$^{3+}$/Mn$^{2+}$
A polymer sample contains 5 molecules of molar mass 1000, 3 molecules of molar mass 500 and 2 molecules of molar mass 250. What is its weight average molecular weight (Mw)?
Nucleotides in RNA are joined by which of the following phosphodiester linkages?
A vitamin (X) is water soluble but can be stored in the body. Deficiency of X causes which disease?
Which of the following drug is used on diseased skin surface?
1.06 g of Na$_2$CO$_3$ (molar mass = 106 g mol$^{-1}$) is dissolved in 500 g water. What is its molality?
At T(K), the electrode potential of A$^{2+}$(X M)$|$A(s) is –0.2285 V. Given $E^\circ_{A^{2+}/A} = -0.14$ V, the value of X in mol L$^{-1}$ is:
Identify the correct statements about order of reaction:
I) It is equal to the sum of the powers of concentration terms in rate equation
II) It is always a whole number
III) It is determined experimentally
IV) It is not applicable for complex reactions
Identify the macromolecular colloids from the list given below:
I. Synthetic rubber II. Rhombic sulphur III. Sodium stearate
IV. Cellulose V. Enzymes VI. Sodium lauryl sulphate
5.0 mL of [AgI] / Ag$^+$ sol is coagulated by the addition of 15 mL of 0.001 M potassium iodide solution. The flocculation value of potassium iodide is
The sulphide ore of copper containing iron as impurity is removed in the form of a slag by adding an oxide of element X. Identify the element X.
In aqueous solutions, the strongest reducing agents in Group 1 and Group 2 elements of the periodic table respectively are
The correct order of atomic radii of Al, Ga, In, Tl is
Among the following the correct statements are:
I. Carbon black is obtained by burning hydrocarbons in a limited supply of air
II. Carbon black is obtained by burning hydrocarbons in absence of air
III. Coke is obtained by burning coal at high temperatures in a limited supply of air
IV. Coke is obtained by burning coal at high temperatures in absence of air

Match the following:

CompoundReaction Type
A. CH2=CH2I. Electrophilic substitution reaction
B. CH3COOCH3II. Nucleophilic substitution reaction
C. C6H6III. Electrophilic addition reaction
D. CH3ClIV. Nucleophilic addition reaction

The decreasing order of p$K_b$ of the following aromatic amines is

CsCl crystallizes in a BCC structure. The radii of cation and anion are 165 pm and 182 pm respectively. What is the edge length of the unit cell?
At $T$ (K), a gas obeys kinetic gas equation. At this temperature, for a given number of molecules, PV = x. If the number of molecules is doubled at $T$, then the value of PV would be
An organic compound containing C, H and N has 72.7% C, 13.1% H and 14.1% N. Its empirical formula is
For the reaction $2A(g) + B(g) \rightarrow 2C(g)$, if $\Delta U^\circ = -8.80$ kJ mol$^{-1}$ and $\Delta S^\circ = -50$ J K$^{-1}$ mol$^{-1}$ at 300 K, the correct statement is: