Chemistry-Fibres and Plastics [NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension]: Questions 1 - 2 of 2
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Question 1
Question MCQ▾
Which of the following will be suitable for coating dress materials of fire-men?
Choices
Choice (4) | Response | |
---|---|---|
a. | Polyester | |
b. | Nylon | |
c. | Acrylic | |
d. | Melamine |
Question 2
Question MCQ▾
Helium balloons float in air why?
Choices
Choice (4) | Response | |
---|---|---|
a. | It has same weight as that of air | |
b. | It is heavier than air | |
c. | It is lighter than air | |
d. | Question does not provide sufficient data or is vague |