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Home /
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MDCAT Past Papers /
UHS /
Chemistry /
Chap No 2 /
2019 /
Quiz 1

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MDCAT Past Papers - UHS - Chemistry - Chap No 2 - 2019 Quiz

Attempt 10 MCQs on MDCAT Past Papers - UHS - Chemistry - Chap No 2 (Year 2019) | Quiz 1

1. All the collisions between the particles of gases are elastic in nature. What is meant by "Elastic collisions".

No change in potential energy during collision.
The velocity of molecules change.
No change in kinetic energy
No change in mass during collision.

2. According to James Watson Crick's model of DNA, the DNA molecule consists double helix. What type of forces are responsible to keep two strands of DNA together?

Hydrogen bonding
Dipole-induce dipole forces
Van Der Waal's forces
Ionic bonding

3. An intermolecular force of attraction X is relatively stronger than the other intermolecular forces, it stabilizes a-helix by:

Hydrogen bonding
Dipole-dipole attraction
Van Der Waal's forces
Ionic Interaction

4. Which of the following substances exhibits hydrogen bonding?

HI
H₂S
SiH₄
NH₃

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