PAST BOARDS 2018 Flashcards

1
Q

The chemist who wom a nobel prize in 1944 for nuclear fission?

A

Otto Hahn

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2
Q

Molecular Formula of DNA

A

G- C10 H22 O6 N5 P
C- C9 H12 O6 N3 P
T- C10 H13 O7 N2 P
U- C9 H 11 O7 N2 P

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3
Q

What will you wear for protection against beta particles?

A

Aluminum

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3
Q

Former name of element Antimony?

A

Stibium

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4
Q

Process in which wastewater is subjected to air?

A

Activated sludge process

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5
Q

Molecular Formula of Sucrose

A

C12H22O11

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6
Q

Molecular formula of Urea

A

CH4N2O

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7
Q

They are compounds that have the same molecular formula and different connectivity?

A

Constitutional Isomers

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8
Q

The minimum amount of energy required to start a chemical reaction?

A

Activation Energy

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9
Q

States that when stress is applied to a system in a state of equilibrium the system reacts in a way to reduce the stress

A

Le Chatelier’s Principle

Ex. Sunglasses

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10
Q

What is Zeroth Law of Thermodyanamics?

A

States that if two bodies are each on thermal equilibrium w/ some third body, then they are also in equilibrium w/ each other

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11
Q

Where was oil shark revovered?

A

Kerogen

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12
Q

It hardens during the absorption of

A

Hydrated Lime

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13
Q
A
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