NEET 2018

Instructions

For the following questions answer them individually

Question 151

The correct difference between first- and second-order reactions is that

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Question 152

Among $$CaH_{2},BeH_{2},BaH_{2},$$ the order of ionic charecter is

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Question 153

Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below:


Then the species undergoing disproportionation is

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Question 154

In which case is the number of molecules of water maximum ?

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Question 155

The compound A on treatment with Na gives B, and with $$PCl_{5}$$ gives C B and C react together to give diethyl ether. A, B and C are in the order

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Question 156

Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms.(A)is

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Question 157

The compound $$C_{7} H_{8}$$ undergoes the following reactions :


The product 'C' is

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Question 158

Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and humanactivity ?

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Question 159

A mixture of 2:3 g formic acid and 4.5 g oxalic acid is aon with conic.$$H_{2}SO_{4}$$ The evolved mixture is passes through KOH pellets.Weight (in g) of the remaining product at STP will be

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Question 160

The difference between amylose and amylopectin is

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