(A) 1973
(B) 1974
(C) 1975
(D) 1976
Which is the first country to launch vehicle in space?
(A) Canada
(B) USSR
(C) USA
(D) UK
When there are two electrons in the same orbital they have?
(A) Opposite spin
(B) Same spin
(C) Same or opposite spin
(D) No spin
Which of the following is not a precious/semi-precious stone?
(A) Emerald
(B) Pearl
(C) Sapphire
(D) Ruby
Silk fibre chemically is?
(A) Protein
(B) Cellulose
(C) Carbohydrate
(D) Fat
Enzyme that converts glucose to ethyl alcohol is?
(A) Maltase
(B) Invertase
(C) Zymase
(D) Diastase
Milk is a colloidal system in which?
(A) Fat is dispersed in water
(B) Water is dispersed in fat
(C) Fat and water are dispersed in each other
(D) Fat is dissolved
Which of the following is used to iodise common salt?
(A) Iodine
(B) Potassium iodide
(C) Potassium iodate
(D) Sodium iodide