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Recent questions tagged class11
Questions
In the purification of lead electrolytically,which of the following facts is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
medium
asked
Jul 25, 2014
by
sreemathi.v
1
answer
The chief ore of lead is
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 25, 2014
by
sreemathi.v
1
answer
Which is the chief ore of tin?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 25, 2014
by
sreemathi.v
1
answer
Which of the following is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
medium
asked
Jul 25, 2014
by
sreemathi.v
1
answer
Which of the following statements regarding glass is not true?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
medium
asked
Jul 25, 2014
by
sreemathi.v
1
answer
Which of the following statements is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following statements is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
medium
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following statements is not correct ?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-13
boron-family
easy
q7
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
The dissolution of stannous hydroxide in excess base produces
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
medium
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following statements is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
medium
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following facts is not correct ?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-13
boron-family
medium
q5
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
Which of the following oxides is an acidic oxide?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following statements is not true ?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-13
boron-family
easy
q4
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
Which of the following statements is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following statements is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
The atomic number of indium which belongs to 5th period is
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-13
boron-family
easy
q3
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
The number of elements in Group 13 is
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-13
boron-family
easy
q2
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
Which of the following elements does not belong to Group 13 of the periodic table ?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-13
boron-family
easy
q1
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
Which of the following statements is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following statements is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following statements is not correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Calculate the electronegativity of Flourine, given the following: $E_{H-H} = 104.2 \; kcal\;mol^{-1},\; E_{F-F} = 36.6\; kcal\;mol^{-1},\;E_{H-F} = 134.6 \; kcal\;mol^{-1},\;\chi_H = 2.1$
jeemain
cbse
chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
inorganic-chemistry
electronegativity
medium
asked
Jul 24, 2014
by
balaji.thirumalai
1
answer
Which of the following orders regarding the boiling point is correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following sets of bonds are correctly ordered from least to most polar?
cl51199
jeemain
cbse
chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
inorganic-chemistry
electronegativity
medium
asked
Jul 24, 2014
by
balaji.thirumalai
1
answer
Which of the following orders regarding the melting points is correct?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-14
carbon-family
easy
asked
Jul 24, 2014
by
sreemathi.v
1
answer
Which of the following compounds is the most polar: H$_2$O (l), H$_2$S (g), HF (l), HCl (g) ?
cl51199
jeemain
cbse
chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
inorganic-chemistry
electronegativity
medium
asked
Jul 24, 2014
by
balaji.thirumalai
1
answer
Four elements P, Q, R and S belong to groups 13, 15, 16, and 17, but not in that order. The electronegativity values of four elements in the same period of the periodic table are listed below:
jeemain
cbse
chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
inorganic-chemistry
electronegativity
medium
asked
Jul 24, 2014
by
balaji.thirumalai
1
answer
An equilateral triangle is inscribed in the parabola $ y^2 = 4 ax$, where one vertex is at the vertex of the parabola. Find the length of the side of the triangle
cbse
class11
ch11
conic-sections
bookproblem
sec-c
medium
misc
p264
q8
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
A man running a racecourse notes that the sum of the distances from the two flag posts from him is always 10 m and the distance between the flag posts is 8 m. Find the equation of the posts traced by the man.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
medium
misc
p264
q7
asked
Jul 24, 2014
by
thanvigandhi_1
1
answer
The radii of F, O, F$^{-}$ and O$^{2-}$ follows which of the following orders:
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
medium
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
The ionic radius of Na$^{+}$ ion is 0.95 and the inter-nuclear distance between ion pairs in the NaCl crystal is 2.76. What is the radius of the Cl$^{-}$ ion?
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
medium
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Which of the following statements are incorrect?
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
medium
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the following sets of atoms and ions in order of increasing size: S, S$^{2-}$, Cl
cl51133
cl51111
cl51109
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
easy
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the following sets of atoms and ions in order of increasing size: Fe, Fe$^{2+}$, Fe$^{3+}$
cl51111
cl51109
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
easy
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
List these atoms in order of decreasing size: Br, Cl, Ge, K, S.
cl51129
cl51127
cl51125
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
difficult
basics
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Which of the following statements is true regarding atomic radii ?
cl51127
cl51125
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
basics
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Arrange the following monatomic ions in order of increasing atomic radii: P$^{3–}$, Cr$^{6+}$, Ca$^{2+}$, Cl$^{-}$, Ti$^{4+}$.
cl51125
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
difficult
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank each set of ions in order of decreasing size: Ca$^{2+}$, Sr$^{2+}$, Mg$^{2+}$.
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
medium
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the elements in each of the following sets in order of decreasing First Ionization Energy IE$_1$: K, Ca, Rb
cl51121
cl51119
cl51117
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
ionization-enthalphy
medium
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the elements in each of the following sets in order of decreasing First Ionization Energy IE$_1$: K, Ca, Rb
cl51119
cl51117
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
ionization-enthalphy
medium
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the elements in each of the following sets in order of decreasing First Ionization Energy IE$_1$: Sb, Te, Sn
cl51117
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
ionization-enthalphy
medium
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the elements in each of the following sets in order of decreasing First Ionization Energy IE$_1$: Kr, He, Ar
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
ionization-enthalphy
easy
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the set of main group elements in order of decreasing atomic size: $ Sr, Ca, Rb$
cl51113
cl51111
cl51109
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
easy
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the set of main group elements in order of decreasing atomic size: $ Br, Rb, Kr$
cl51111
cl51109
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
easy
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the set of main group elements in order of decreasing atomic size: $K, Ga, Ca$
cl51109
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
easy
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Rank the set of main group elements in order of decreasing atomic size: $Ca, Mg, Sr$
jeemain
chemistry
inorganic-chemistry
class11
ch3
classification-of-elements-and-periodicity-of-properties
periodicity
atomic-radius
easy
asked
Jul 23, 2014
by
balaji.thirumalai
1
answer
Find the area of the triangle formed by the lines joining the vertex of the parabola $ x^2 = 12y $ to the ends of its latus rectum.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
medium
misc
p264
q6
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
A rod of length 12 cm moves with its ends always touching the coordinate axes. Determine the equation of the locus of a point P on the rod, which is 3 cm from the end in contact with the x-axis.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
medium
misc
p264
q5
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
An arch is in the form of a semi-ellipse. It is 8 m wide and 2 m high at the centre. Find the height of the arch at a point 1.5 m from one end.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
difficult
misc
p264
q4
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
The cable of a uniformly loaded suspension bridge hangs in the form of a parabola. The roadway which is horizontal and 100 m long is supported by vertical wires attached to the cable, the longest wire being 30 m and the shortest being 6 m. Find the length of a supporting wire attached to the roadway 18 m from the middle.
cbse
class11
ch11
conic-sections
bookproblem
sec-c
difficult
misc
p264
q3
asked
Jul 23, 2014
by
thanvigandhi_1
1
answer
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