Which isotope of Uranium is capable of sustaining chain
reaction ?
Who was the first cosmonaut?
What is the morphology ?
What are comets?
which among the followings is found chlorophyll ?
What is the Embrylogy ?
The first synthetic fiber made by man was 1 Rayon 2 Nylon 3 Polyester 4 Terycott
Gypsum is added to cement clinker to 1 Increase the tensile strength of cement 2 Bind the particles of calcium silicate 3 Decrease the rate of setting of cement 4 Facilitate the formation of colloidal gel
difference between ancient age,middle age & modern age.
wheather lightning will attack a aeroplane during flying if not why
In laundry soaps, a material called ‘filler’ is used. Which of the following is a ‘filler? 1 Talc 2 Sodium silicate 3 Soda ash 4 Sodium phosphate
When an iron nail gets rusted, iron oxide is formed 1 Without any change in the weight of the nail 2 With increase in the weight of the nail 3 With decrease in the weight of the nail 4 None of these
Which of the following materials are used for preparing blur-black ink? 1 Gallic acid 2 Tannic acid 3 Ferrous sulphate 4 All of these