₆C¹⁴ absorbs an energitic neutron and emits beta particles. The resulting nucleus is
Options
(a) ₇N¹⁴ (b) ₇N¹³ (c) ₅B¹³ (d) ₆C¹³
Correct Answer:
₇N¹³
Explanation:
No explanation available. Be the first to […]
Wires A and B are made from the same material. A has twice the diameter and three times the length of B. If the elastic limits are not reached, when each is stretched by the […]
A wheel has moment of inertia 5 x 10⁻³ kgm² and is making 20 revolutions per sec. The torque need to stop it in 10 sec is ___ x 10⁻²Nm
Options
(a) 2 […]
40 mg of pure sodium peroxide is dissolved in 10L of distilled water. The pH of the solution is
Options
(a) 9 (b) 10 (c) 11 (d) 12
Correct Answer:
10
Explanation:
No […]
A gas mixture contains 50% He and 50% Methane by volume. What is the percent by weight of methane in the mixture?
Options
(a) 19.97% (b) 20.05% (c) 50% (d) 80%
Correct Answer: […]
An organic compound A(C₄H₉Cl) on reaction with Na/diethylether gives a hydrocarbon,which on monochlorination gives only one chloro derivative.A is
Options
(a) t-butyl chloride (b) sec-butyl chloride (c) iso-butyl chloride (d) n-butyl chloride
Correct […]
2017 Copyright Doctor Dreams Training Academy