Chemistry-
General
Easy
Question
Which of the following aldohexoses give the same osazone derivative ?
- I and IV
- I and III
- II and III
- III and IV
The correct answer is: II and III
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Observe the following laboratory tests for a–D(+) glucose and mention +ve or –ve ion from the code given below
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The correct functional group X and the reagent/reaction conditions Y in the following scheme are
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The following carbohydrate is
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The correct statement(s) about the following sugars X and Y is(are) :
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Magnetic moment of Cr (Z = 24), Mn+ (Z = 25) and Fe2+ (Z = 26) are a,b,c. They are in the order:
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A copper rod of length L and radius ris suspended from the ceiling by one of its ends. What will be elongation of the rod due to its own weight when 
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The value of force constant between the applied elastic force 
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A student plots a graph from his reading on the determination of Young’s modulus of a metal wire but forgets to label. The quantities on 
and 
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physics-General
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If the ratio of lengths, radii and Young’s modulus of steel and brass wires shown in the figure are 
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Salicin (structure given below) is a glycoside, found in the bark of willow tree, used in relieving pain. Observe the following reaction of salicin
The correct statement (s) is (are) :
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The correct statement (s) is (are) :
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Which one of the following is the Young’s modules (in 
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The diagram shows the change 
in the length of a thin uniform wire caused by the application of stress at two different temperatures 
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IfΔHf ofICl(g),Cl(g),andI(g)is17.57,121.34and 106.96Jmol–1respectively.Thenbonddissociation energyofIClbondis-
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Calculateenthalpychangeofthefollowingreaction H2C=CH2(g)+H2(g)→H3C–CH3(g) ThebondenergiesofC–H,C–C,C=C,H–Hare414, 347,615and435KJmol–1respectively-
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HeatevolvedinthereactionH2+Cl2 →2HClis 182KJ.BondenergiesofH–H and Cl–Clare430 and242KJ/mol respectively.The HCl bond energy is-
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chemistry-General
