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.Management Sciences
Category: Chemistry Basic Concept
On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?
A. pink
B. black
C. yellow
D. brick red
As a substance moves from a solid to a liquid all of the following changes occur except ?
A. molecules become more disordered.
B. K.E of the molecules decreases
C. intermolecular forces become weaker.
D. molecules move more frequently.
Which one is true about isotope ?
A. Same number of neutrons
B. Same mass number
C. Same physical properties
D. Same chemical properties
Acid present in acid rain may be_________________?
A. H2SO4
B. HNO3
C. both A and B
D. none of the above
Size of molecule depends upon________________?
A. Atomicity
B. Shape of molecule
C. Both A and B
D. Difficult to predict
The use of antifreeze in the automobile radiator is an important application of__________________?
A. constitutive property
B. additive property
C. colligative property
D. intrinsic property
Which of the following theories is superior to others__________________?
A. VSEPR
B. VBT
C. MOT
D. none of the above
The properties of an element mosly corresponds to that isotope which has greater_________________?
A. Mass number
B. Atomic mass
C. Relative abundance
D. all of the above
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