The correct order of the complex ions, according to their spin only magnetic moment values (in B.M.) is :
Answer
(C)
Q < R < P
9
Choose the polar molecule from the following:
Answer
(D)
$$\mathrm{CHCl}_3$$
10
Given below are two statements :
Statement (I) : The $$4 \mathrm{f}$$ and $$5 \mathrm{f}$$ - series of elements are placed separately in the Periodic table to preserve the principle of classification.
Statement (II) : S-block elements can be found in pure form in nature.
In the light of the above statements, choose the most appropriate answer from the options given below :
Answer
(C)
Statement I is true but Statement II is false
11
Given below are two statements :
Statement (I) : p-nitrophenol is more acidic than m-nitrophenol and o-nitrophenol.
Statement (II) : Ethanol will give immediate turbidity with Lucas reagent.
In the light of the above statements, choose the correct answer from the options given below :
Answer
(A)
Statement I is true but Statement II is false
12
The ascending order of acidity of $$-\mathrm{OH}$$ group in the following compounds is :
Choose the correct answer from the options given below:
Answer
(D)
(A) < (C) < (D) < (B) < (E)
13
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Melting point of Boron (2453 K) is unusually high in group 13 elements.
Reason (R) : Solid Boron has very strong crystalline lattice.
In the light of the above statements, choose the most appropriate answer from the options given below ;
Answer
(B)
Both (A) and (R) are correct and (R) is the correct explanation of (A)
14
Cyclohexene
is ________ type of an organic compound.
Answer
(D)
Alicyclic
15
Yellow compound of lead chromate gets dissolved on treatment with hot $$\mathrm{NaOH}$$ solution. The product of lead formed is a :
Answer
(D)
Dianionic complex with coordination number four
16
Given below are two statements :
Statement (I) : Aqueous solution of ammonium carbonate is basic.
Statement (II) : Acidic/basic nature of salt solution of a salt of weak acid and weak base depends on $$K_a$$ and $$K_b$$ value of acid and the base forming it.
In the light of the above statements, choose the most appropriate answer from the options given below :
Answer
(A)
Both Statement I and Statement II are correct
17
IUPAC name of following compound (P) is:
Answer
(B)
3-Ethyl-1,1-dimethylcyclohexane
18
$$\mathrm{NaCl}$$ reacts with conc. $$\mathrm{H}_2 \mathrm{SO}_4$$ and $$\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$$ to give reddish fumes (B), which react with $$\mathrm{NaOH}$$ to give yellow solution (C). (B) and (C) respectively are ;
The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is ;
Answer
(D)
Racemisation occurs in $$S_N 1$$ reaction and inversion occurs in $$\mathrm{S}_{\mathrm{N}} 2$$ reaction.
20
The electronic configuration for Neodymium is:
[Atomic Number for Neodymium 60]
Answer
(A)
$$[\mathrm{Xe}] 4 \mathrm{f}^4 6 \mathrm{~s}^2$$
21
The mass of silver (Molar mass of $$\mathrm{Ag}: 108 \mathrm{~gmol}^{-1}$$ ) displaced by a quantity of electricity which displaces $$5600 \mathrm{~mL}$$ of $$\mathrm{O}_2$$ at S.T.P. will be ______ g.
Answer
108
22
Consider the following data for the given reaction
Mass of methane required to produce $$22 \mathrm{~g}$$ of $$\mathrm{CO}_2$$ after complete combustion is _______ g.
(Given Molar mass in g mol-1 $$\mathrm{C}=12.0$$, $$\mathrm{H}=1.0$$, $$\mathrm{O}=16.0)$$
Answer
8
24
If three moles of an ideal gas at $$300 \mathrm{~K}$$ expand isothermally from $$30 \mathrm{~dm}^3$$ to $$45 \mathrm{~dm}^3$$ against a constant opposing pressure of $$80 \mathrm{~kPa}$$, then the amount of heat transferred is _______ J.
Answer
1200
25
3-Methylhex-2-ene on reaction with $$\mathrm{HBr}$$ in presence of peroxide forms an addition product (A). The number of possible stereoisomers for '$$\mathrm{A}$$' is ________.
Answer
4
26
Among the given organic compounds, the total number of aromatic compounds is
Answer
3
27
Among the following, total number of meta directing functional groups is (Integer based)
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