EASY
Indian Army Agniveer
IMPORTANT
Earn 100

From which mineral is radium obtained _____

50% studentsanswered this correctly

Important Questions on Chemistry

MEDIUM
Indian Army Agniveer
IMPORTANT
Achieve Indian Army Agniveer General Science Practice Book>Chapter 3 - Chemistry>Exercise 1>Q 2
Metals like sodium, potassium calcium and magnesium are extracted by electrolysis of their chlorides in molten state. These metals are not extracted by reduction of their oxides with carbon because 
(A) reduction with carbon is very expensive
(B) carbon readily makes alloys with these metals.
(C) carbon has less affinity for oxygen
(D) carbon is a weaker reducing agent than these metals.
MEDIUM
Indian Army Agniveer
IMPORTANT
Achieve Indian Army Agniveer General Science Practice Book>Chapter 3 - Chemistry>Exercise 1>Q 3
The new strain of bacteria which is produced by the biotechnology technique in alcohol industry is _____.
MEDIUM
Indian Army Agniveer
IMPORTANT
Achieve Indian Army Agniveer General Science Practice Book>Chapter 3 - Chemistry>Exercise 1>Q 4
Which of the following has the same monomer unit?
EASY
Indian Army Agniveer
IMPORTANT
Achieve Indian Army Agniveer General Science Practice Book>Chapter 3 - Chemistry>Exercise 1>Q 5
Which of the following will be suitable for coating dress materials of firemen? 
EASY
Indian Army Agniveer
IMPORTANT
Achieve Indian Army Agniveer General Science Practice Book>Chapter 3 - Chemistry>Exercise 1>Q 6
When hot water is placed into an empty water bottle, the bottle keeps its shape and does not soften. What type of plastic is the water bottle made from?
EASY
Indian Army Agniveer
IMPORTANT
Achieve Indian Army Agniveer General Science Practice Book>Chapter 3 - Chemistry>Exercise 1>Q 7
The handle of pressure cookers is made of plastic because it should be made non-conductor of heat. The plastic used there is the first man-made plastic, which is _____.
EASY
Indian Army Agniveer
IMPORTANT
Achieve Indian Army Agniveer General Science Practice Book>Chapter 3 - Chemistry>Exercise 1>Q 8
Raw mangoes shrivel when pickled in brine. The phenomenon is associated with
MEDIUM
Indian Army Agniveer
IMPORTANT
Achieve Indian Army Agniveer General Science Practice Book>Chapter 3 - Chemistry>Exercise 1>Q 9
Which of the following is/are the advantage(s) of biodiesel?