Search for notes by fellow students, in your own course and all over the country.
Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.
Document Preview
Extracts from the notes are below, to see the PDF you'll receive please use the links above
HOME TEST-10 (HT-10)
CLASS : XII
Time : 3 Hours
Max
...
The question paper consists of three parts (Physics, Chemistry and Mathematics)
...
2
...
Each question has Four choices (A), (B), (C) and (D)
out of which only ONE is correct
...
Section 2 contains 6 multiple choice questions
...
Marking Scheme
4
...
In all other cases,
minus two (–1) mark will be awarded
...
For each question in Section 2, you will be awarded 4 marks if you darken the bubble(s) corresponding
to only the correct answer(s) and zero mark if no bubbles are darkened
...
Resonance Eduventures Pvt
...
CORPORATE OFFICE : CG Tower, A-46 & 52, IPIA, Near City Mall, Jhalawar Road, Kota (Raj
...
No
...
Office : J-2, Jawahar Nagar, Main Road, Kota (Raj
...
No
...
: +91-022-39167222
Website : www
...
ac
...
ac
...
Each question has Four choices (A), (B), (C)
and (D) out of which only ONE is correct
...
Two wires each of radius of cross section r but of different materials are connected together end to
end (i
...
in series)
...
In the figure shown:
(A) current will flow from A to B
(B) current may flow from A to B
(C) current will flow from B to A
(D) the direction of current will depend on r
...
In the figure shown the current flowing through 2 R is :
(A) from left to right
(B) from right to left
(C) no current (D) None of these
4
...
It’s resistance is 10
...
a resistor should be connected in
(A) series, 0
...
1
(C) series, 100
(D) parallel, 100
...
The equivalent resistance between A and B in the arrangement of resistances as shown, is :
(A) 4r
6
...
5r
(D) r
A battery of internal resistor ' r ' and e
...
f
...
If the
sliding contact is moved from A to B, then terminal potential difference of battery will :
(A)
(B)
(C)
(D)
remain constant & is independent of value of external resistance
increase continuously
decrease continuously
first increase and then will decrease
...
A uniform wire of resistance R is stretched uniformly n times & then cut to form five identical wires
...
The effective resistance between A & B will be :
(A)
8
...
1 is balance
length
...
Then value of ' x ' must be:
copper strips
(rk sd h if )
¡
c
ê;k
¡
100
x
G
A
1
E
(A) 50
B copper strips
(rk sd h if )
¡
c
ê;k
¡
2
(B) 100
r
(C) 200
(D) 400
9
...
(B) 6/31 A
(C) 4/31 A
(D) none of these
In the circuit shown the variable resistance X is to be adjusted such that the ideal ammeter
reads the same in both the positions of the key, when connected independently to 1 and then
to 2
...
If E = 10 V, then x is:
(A) 5
...
Each question has four choices (A), (B), (C)
and (D) out of which ONE or MORE are correct
...
A charge passing through a resistor is varying with time as shown in the figure
...
(C)
(D)
In the figure a conductor of nonuniform cross-section is shown
...
(A) The
(B) The
(C) The
(D) The
13
...
electric field at B is more than at A
...
thermal power generated at B is more than at A in an element of small same width
...
Time dependence of the current is
shown in the graph
...
(B) Average current through the resistor is 5A
...
(D) Maximum power during the flow of current is 100 W
...
To get maximum current through a resistance of 2
...
The internal resistance of each cell is 0
...
What are the values of n &
m, if the total number of cells is 45 can be
...
In this circuit (Battery is ideal)
A
I
I1
D
(A) R AD
3
2
(B) i
16
A
3
earthed
(C) i1
5
A
6
(D) i
10
A
3
16
...
Find the currents through the resistores a and b in the circuit
(A) (B)
(C)
(D)None of these
CHEMISTRY
Atomic masses : [H = 1, D = 2, Li = 7, C = 12, N = 14, O = 16, F = 19, Na = 23, Mg = 24, Al = 27, Si = 28,
P = 31, S = 32, Cl = 35
...
5, Zn = 65, As = 75, Br =
80, Ag = 108, I = 127, Ba = 137, Hg = 200, Pb = 207]
Section 1 (Only one option correct Type)
This section contains 10 multiple choice questions
...
17
...
In the electrolysis of an aqueous nickel(II) sulphate solution, the process 2H2O = 2O2 + 4H+ + 4eoccurs at the anode
...
The passage of a constant current through a solution of dilute H2SO4 with ‘Pt’ electrodes liberated
336 cm3 of a mixture of H2 and O2 at S
...
P
...
A hydrogen electrode placed in a buffer solution of CH3COONa and CH3COOH in the molar ratios
x : y and y : x has oxidation potentials E1 and E2 volts respectively at 298 K
...
The pKa
value of acetic acid will be given by
...
E1 E 2
0
...
118
(C)
E1 E 2
0
...
Calculate the specific conductance and the equivalent
10
conductance of the solution if the electrodes in the cell are 7 cm apart and each has an area of 7 sq
...
(A) 40 –1 cm2 eq–1
(B) 30 –1 cm2 eq–1
(C) 20 –1 cm2 eq–1
(D) None of these
22
...
The resistance observed if they are mixed in a volume proportion which is
reciprocal of their resistances and tested in the same conductivity cell would be :
(A) 67
...
8
(C) 100
(D) 300
23
...
01 S and 0
...
What would be the conductance if both solution are mixed together and tested
upon in the same conductivity cell ?
(A) 0
...
015 S
(C) 0
...
The specific conductivity is 0
...
1 M in KCl and 0
...
Calculate (N+) if the (k+) = 74 and (Cl–) = 76 resp
...
The solubility of [Co(NH3)4Cl2] ClO4 if the CO (NH3 )4 Cl2 = 50, ClO 4 = 70 and the measured resistance
was 33
...
20 is ________
(A) 59
...
7 mmol/L
(C) 39
...
7 mmol/L
26
...
Which pole of the current source is the electrode connected to?
(A) The positive pole
(B) Could be either pole
(C) The negative pole
(D) Cannot be determined
Section 2 (One or more options correct Type)
This section contains 6 multiple choice questions
...
27
...
4 × 10–6 ohm–1 cm–1 and that of H2O () used is
2
...
m for AgCl is 138 ohm–1 cm2 mol–1 then the solubility of AgCl in moles per
liter will be (A) 10–5
(B) 10–10
(C) 10–14
(D) 10–16
Comprehension
(Read the following passage and answer the questions numbered 28 to 32
...
The
Latimer diagram for chlorine in acid solution is
1
...
18
V
1
...
67 Cl2 1
...
28
...
37 V
0
...
42 V
0
...
36 Cl–
The standard potentials for two nonadjacent species can also be calculated by using the concept
that G° is an additive property but potential is not an additive property and G° = – nFx0
...
The reverse of disproportionation is called comproportionation
...
The most
stable oxidation state of a species lies lowest in the diagram
...
Which of the following couple have same value of potential at pH = 0 and pH = 14?
(A)
29
...
78 V
30
...
94 V
(C)
ClO
Cl2
(D)
Cl2
Cl
at pH = 14?
(C) 0
...
89 V
Which of the following statement is correct ?
(A) Cl2 undergoes disproportionation into Cl– and ClO– both at pH = 0 and pH = 14
...
(C) Cl2 undergoes disproportionation into Cl– and ClO– at pH = 0 but not at pH = 14
...
For a hypothetical element, the Frost diagram is shown in figure?
Which of the following oxidation state is least stable?
(A) – 1
(B) 0
(C) + 2
32
...
14)?
(A) A+1 undergoes disproportionation into A and A2+
(B) A2+ undergoes disporportionation in A and A3+
(C) A undergoes comporportionation in A+1 and A–1
(D) All of the above
(D) + 3
MATHEMATICS
Section 1 (Only one option correct Type)
This section contains 10 multiple choice questions
...
33
...
(B)
405
256
is :
(C)
504
259
(D)
450
263
405
512
The first three terms in the expansion of the (1 + ax)n (n 0) are 1, 6x and 16x2
...
10
(B) 3 and 2
(C)
2
and 9
3
(D)
3
and 6
2
In the expansion of (1 + x)43 if the coefficients of the (2r + 1)th and the (r + 2)th terms are
equal, the value of r is :
(A) 12
36
...
10
37
...
has the maximum numerical value, find
64
64
, 2 2,
(A)
21
21
64
64
, 2 2,
(B)
21
21
64
64
, 2 2,
(C)
21
21
(D) None of the above
100
38
...
2m
is
m 0
(A)
39
...
100C
47
(B)
100C
53
(C) –
100 C
53
(D) –
Coefficient of x m in (1 + x)m + (1 + x)m+1 +
...
The number of positive integral solutions of the equation 20 x + y + z 50 is :
(A) 50C3 – 20C3
(B) 51C3 – 19C3
(C) 50C3 – 19C3
(D) 51C3 – 21C3
42
...
nC0
(A) zero
8
...
nC2 18
...
upto (n+1) terms is
(B) 1
(C) 2
(D) none of these
Section 2 (One or more options correct Type)
This section contains 6 multiple choice questions
...
43
...
If f(x + ay, x
(C) 13/4
(D) 5/2
ay) = axy then f(x, y) is equal to :
x2 y2
4
(A)
45
...
2
The domain of the function log1/ 3 log 4 ([ x ] 5) is
(where [x] denotes greatest integer function)
(A) [–3, –2) U [3, 4)
(B) [–3, –2) U (2, 3]
(C) R – [–2, 3)
47
...
(B) 10 –5/2
If 9
(C) 100
(D) 5
= + f where I , n are integers and 0 < f < 1 , then :
n
80
(A) is an odd integer
(B) is an even integer
(C) ( + f) (1 – f) = 1
(D) 1 f = 9
n
80