Related Questions

A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory . There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times ; and each sphomore's name , 1 time . What is the probability that a senior's name will be chosen?
A 18
B 38
C 48 
D 28
a chemial is mixed 30 ml mixed , 10 ml is acid , how much ml of acid must be mixed such that a 50/50 mixure of water and acid is attend if no additional water is added
A 20
B 10
C 40
D 30
How many liters of a 90% of concentrated acid needs to be mixed with a 75% Solution of concentrated acid to get a 30 liter Solution of 78% concentrated acid?
A 8
B 6
C 7
D 9
The molecular mass of sulphuric acid is 98. If 49 g of the acid is dissolved in water to make one litre of solution, what will be the strength of the acid?
A Two normal
B One normal
C 0.5 normal
D Four normal
Alkaline phosphatase is raised in
A Osteomalacia
B Paget’s disease
C Osteoporosis
D Haemolytic anaemia
E Post menopausal syndrome
Alkaline phosphatase is increased in
A Biliary obstruction
B Primary biliary cirrhosis
C Rickets
D Acrodermatitis enteropathica
E Hypophosphatasia
Which of the following electrodes is used in strongly alkaline solution?
A Mercury - mercuric oxide electrode
B Mercury - mercurous sulphate electrode
C Mercury - mercurous chloride electrode
D Silver - silver chloride electrode
In alkaline cell the electrolyte is
A dilute sulphuric acid
B concentrated sulphuric acid
C NaOH
D kOH
The most resistant material to alkaline corrosion is
A Duriron
B Nickel
C Aluminium
D Karbate
Which one of the following is not an alkaline earth metal?
A barium
B calcium
C magnesium
D sodium

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