The rate constant for the first order decomposition of \(H _2 O _2\) is given by:\[ \log k=15-\frac{1.2 \times 10^2}{T}\] The activation energy ( \(E_a\) ) would be:

If we use molten \(\text{NaCl}\), the products of electrolysis are __________ .

If the concentration of a reactant is reduced to half, the rate of reaction becomes \(\frac{1}{4}\). What will be the order of reaction?

Match List I with List II

LIST - I (compound)	LIST - II (Hybridization & Geometry)
A. \(X e F_6\)	I. \(sp^3d^3 \text{ distorted octahedral}\)
B. \(XeO _3\)	II. \(sp^3d^2 \text{ square planar}\)
C. \(X e O F_4\)	III. \(sp^3\text{ pyramidal }\)
D. \(X e F_4\)	IV. \(sp^3d^2 \text{ square pyramidal}\)

Choose the correct answer from the options given below

Read the passage carefully and answer the questions based on the passage:
The number of reacting species (atoms, ions or molecules) taking part in an elementary reaction, which must collide simultaneously in order to bring about a chemical reaction is called molecularity of a reaction. In the rate equation Rate \(=k[\mathrm{~A}]^x[\mathrm{~B}]^y\)
\(x\) and \(y\) indicate how sensitive the rate is to the change in concentration of A and B, respectively. Sum of these exponents, i.e., \(x +y\) gives the overall order of a reaction where \(x\) and \(y\) represent the order with respect to the reactants A and B respectively. Hence, the sum of powers of the concentration of the reactants in the rate law expression is called the order of that chemical reaction. For a first order reaction, the concentration of the reactant varies as \([\mathrm{R}]=[\mathrm{R}]_0 e^{-k t}\)
Which of the following is a zero order reaction?

Colligative properties are applicable to:

Arrange the following amines in the order of decreasing basic character in gaseous phase:
(A) \(\text{NH}_3\)
(B) \((\text{CH}_3)_3\text{N}\)
(C) \((\text{CH}_3)_2\text{NH}\)
(D) \(\text{CH}_3\text{NH}_2\)
Choose the correct answer from the options given below:

Given \(\sum p_0 q_0=800, \sum p_0 q_1=1500, \sum p_1 q_1=1300\) and \(\sum p_1 q_0=900\), where subscripts 0 and 1 are used for base year and current year respectively. The Paasche's

If \(\vec{a}=3 \hat{i}-6 \hat{j}+\hat{k}\) and \(\vec{b}=2 \hat{i}-4 \hat{j}+\lambda \hat{k}\) are such that \(\vec{a} \| \vec{b}\), then \(3 \lambda+2=\)

Interstitial compounds are formed when small atoms like H, C, or N are trapped in the crystal lattice of metal. Which of the following statements are true about the interstitial compounds?
(A) Interstitial compounds have higher melting points than the pure metals.
(B) Interstitial compounds are very soft.
(C) Interstitial compounds are very reactive.
(D) Interstitial compounds retain metallic conductivity.
Choose the correct answer from the options given below:

Which one of the following is a result of convergent evolution?

Read the passage carefully and answer the Questions
Amines are classified as primary \(\left(1^{\circ}\right)\), secondary \(\left(2^{\circ}\right)\) and tertiary \(\left(3^{\circ}\right)\) depending upon the number of hydrogen atoms replaced by alkyl or aryl groups in ammonia molecules. Aliphatic amines are a stronger bases due to \(+I\) effect of an alkyl groups. Intermolecular hydrogen bonding in primary and secondary amines affects the boiling points of amines. The intermolecular association is more in primary amines than in secondary amines as there are more number of hydrogen atoms available for hydrogen bond formation. Nitro compounds are reduced to amines by passing hydrogen gas in the presence of finely divided nickel, palladium or platinum and also by reduction with metals in an acidic medium. Gabriel synthesis is used for the preparation of primary amines. Primary amines react with nitrous acid to give unstable diazonium-salts which can be used to synthesize a variety of compounds.
The reaction is an example of

Identify the product \([\text{B}]\) in the following reaction.
\(\text{CH}_3\text{CH}_2-\text{C} \equiv \text{CH} + \text{HCl} \rightarrow \text{A} \xrightarrow{\text{HI}} [\text{B}]\)