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the conjugate base of [Al(H2O)3(OH)3] is
Anonymous Quiz
21%
[Al(H2O)3(OH)2]+
34%
[Al(H2O)3(OH)3]-
28%
[Al(H2O)3(OH)3]+
17%
[Al(H2O)2(OH)4]-
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Which of the following is correct
Anonymous Quiz
25%
All Arrhenius acids are also Bronsted acids and all Arrhenius bases
33%
All Bronsted bases are also Lewis bases
20%
All Bronsted acids are also Lewis acids
22%
A strong acid has weak conjugate base but a strong base has a strong conjugate acid
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➪ Amine Short Notes | NJC
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👍11❤6
A person at rest is observing two trains one coming towards him and other leaving with the same speed 4 m/s. If their whistling frequencies are 240 Hz each, then the number of beats per second heard by the person will be (if velocity of sound is 320 m/s)
Anonymous Quiz
13%
3
41%
6
24%
9
23%
Zero
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If the spinning speed of earth is increased then the weight of the body at equator
Anonymous Quiz
25%
Does not change
23%
Doubles
39%
Decreases
12%
Increases
👌5
The weight of a body on the earth is 400 N. Then weight of the body when taken to a depth half of the radius of the earth will be
Anonymous Quiz
32%
200 N
26%
100 N
26%
Zero
16%
200 N
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A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth?
Anonymous Quiz
12%
250 N
48%
100 N
23%
150 N
17%
200 N
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Two particles of masses 4kg and 8kg are kept at x = - 2m and x = 4m respectively. Then, the gravitational field intensity at the origin is
Anonymous Quiz
13%
G
32%
2G
43%
G/2
12%
G/4
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