(A) 9 Second
(B) 10 Second
(C) 12 Second
(D) 13 Second
Author:
A metro train 200 metres long takes 12 seconds to cross a man walking at 10 km/hr in a opposite to that of the train. Find the speed of the train?
(A) 50 km/hr
(B) 60 km/hr
(C) 130 km/hr
(D) 140 km/hr
A passenger train 165 m long which is running at a speed of 30km/hr. In what time will it pass a man who is running at a speed of 3 km/hr in the opposite direction. In which the train is moving.
(A) 14 Second
(B) 16 Second
(C) 17 Second
(D) 18 Second
Lucas test is used for the identification of:
(A) Alkenes
(B) Alcohols
(C) Carboxylic acids
(D) Alkyl halides
Benzene can be formed from phenol in which of the following reactions?
(A) Reduction with alkali
(B) Reduction with zinc
(C) Reduction with acids
(D) Reduction with hydrogen in the presence of Ni
Geometric isomerism is exhibited by:
(A) Alkenes
(B) Alkynes
(C) Ethers
(D) Alcohols
The solubility of the alkaline earth metals:
(A) Decreases the group
(B) Increases down the group
(C) Remains constant throughout the group
(D) First increases then decreases down the group
Which of the following properties increases down the group in alkali metals?
(A) Electron affinity
(B) Reactivity
(C) Ionization energy
(D) Electronegativity