A 180 metre long train is moving due north at a speed of 25 m/s. A small bird is flying due south, a little above the train, with a speed of 5 m/s. The time taken by the bird to cross the train is
Anonymous Quiz
14%
2s
34%
4s
41%
6s
11%
8s
π2π2π₯°1
A body starts from rest and travels for t second with uniform acceleration of 2 m/sΒ². If the displacement made by it is 16 m, the time of travel t is
Anonymous Quiz
17%
2s
36%
4s
39%
8s
9%
12s
Under similar conditions of pressure and temperature, 40 ml of slightly moist hydrogen chloride gas is mixed with 20 ml of ammonia gas, the final volume of gas at the same temperature and pressure will be
Anonymous Quiz
24%
20ml
36%
40ml
34%
100ml
6%
120ml
π1
What is the concentration of nitrate ions if equal volumes of 0.1 MAgNO3 and 0.1 M NaCl are mixed together
Anonymous Quiz
22%
0.04M
38%
0.05M
33%
0.09M
7%
0.06M
π2
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π1
The element with atomic number 35 belongs to
Anonymous Quiz
12%
S block
50%
P block
34%
D block
4%
F block
On the Paulings electronegativity scale the element next to F is
Anonymous Quiz
16%
N
48%
Cl
20%
O
15%
Fe
π1
Which of the following oxides is amphoteric in character?
Anonymous Quiz
23%
Sno2
28%
So4
38%
Cao2
10%
No3
The electronic configuration of an element is 1sΒ², 2sΒ² 2p6, 3sΒ² 3pΒ³. What is the atomic number of the element which is just below the above element in the periodic table
Anonymous Quiz
28%
31
39%
32
20%
33
14%
34
π1
The number of elements in the 5th period of the periodic table is
Anonymous Quiz
12%
3
27%
9
51%
18
10%
21
π3π₯3π₯°2β€1
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Extra Benefits only for 1st 100 students
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πOn call support of Shubham Jha
Let's make Learning Easy!
π3
In a system of units if force (F), acceleration (A) and time (T) are taken as fundamentals units then the dimensional formula of energy is
Anonymous Quiz
14%
Fa5
36%
Fat
45%
Fat2
5%
Atdf
π5
The dimensions of kinetic energy is same as that of
Anonymous Quiz
17%
Force
19%
Pressure
58%
Work
6%
Power
π3π₯3