Match List-I with List-II

List-I (Name Reaction)	List-II (Reagent)
(A) Rosemund Reaction	(I) CO/HCl, anhyd.\(AlCl_{3}\), \(CuCl\)
(B) Stephen Reaction	(II) \(CrO_{2}Cl_{2}\)
(C) Etard Reaction	(III) \(SnCl_{2}\) and HCl
(D) Gatterman Koch Reaction	(IV) \(H_{2}\), \(Pd-BaSO_{4}\)

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Match List I with List II

LIST I	LIST II
A. Pain killers	I. Antipyretics
B. Treatment of infections	II. Analgesics
C. Reducing fever	III. Antibiotics
D. Treatment of depression	IV. Tranquilizers

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Which of the following classes of compounds on hydrolysis yields carboxylic acids?
(A) RCN
(B) \(RCONH_{2}\)
(C) RCOCl
(D) RCOOR'
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Reaction of Chloroethane with ethanolic ammonia will result in :

Read the passage carefully and answer the questions
The chemical reactions proceed at different rates which depend on various factors like concentration, temperature, etc. Rate law is an expression which relates the rate of reaction with concentration of various reacting species in the reaction. For a first order reaction, the concentration of the reactant after time \(t\) is related with its initial concentration by the relation, \(C=C_0 e^{-k t}\). The rate constants for different orders have different expressions. For a first order reaction, \(k=\frac{2.303}{t} \log \frac{a}{a-x}\), where \(a\) is the initial concentration and \(x\) is the extent of reaction.
A first order reaction is one-fifth completed in 40 minutes. Calculate the time required for its 100 % completion

Williamson's synthesis for preparing dimethyl ether involves

The quantity of electricity produced in the oxidation of 67.2 L of \(H 2\) at STP is:

Down's syndrome is caused by:

Match List I with List II

LIST I (Microbes)	LIST II (Products)
A. Lactobacillus	I. Citric acid
B. Aspergillus niger	II. Butyric acid
C. Acetobacter aceti	III. Lactic acid
D. Clostridium butylicum	IV. Acetic acid

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If \(y = x + \tan x\), then value of \(\frac{d^2y}{dx^2}\) at \(x = \frac{\pi}{4}\) is:

Which of the following is not categorized under narrowly utilitarian benefit for conserving biodiversity?

Chromosomes 'Z' and 'W' for sex determination are seen in :

The figure shows a Wheatstone bridge circuit arrangement with a galvanometer G of resistance 5 \( \Omega \) to detect the presence of current. The ratio of heat dissipated across four resistors, \( R_1, R_2, R_3 \) and \( R_4 \) respectively, is :