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Yousaf Interview Imps > Chem Tekky RAG > Flashcards

Chem Tekky RAG Flashcards

1
Q

On a hot day, what should you do with a fridge compared to on a cold day with regards to opening and closing? Why?

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2
Q

Write down an organic reaction you have studied at school and explain its mechanism.?

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3
Q

What makes some chemicals explosive?

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4
Q

Why does paint dry?

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5
Q

How would structures change if orbitals could only occupy 6 electrons compared to 8? What consequences would this have?

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6
Q

How many molecules are there in the glass of water on a table?

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7
Q

This is the ball and stick model of a trigonal pyramidal molecule. WHat are the limitations of this model?

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8
Q

Why does the boiling point of water rise as salt is dissolved in it?

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9
Q

Explain why ice is less dense than water.?

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10
Q

Why does iron rust? How can you prevent this? Is this ecological?

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11
Q

What is the concentration of water?

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12
Q

How would you measure pH if I told you how many hydrogen ions there were?

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13
Q

Why are the structures of CO2 and SiO2 different?

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14
Q

Draw the structure of Al2Br6 and describe the bonding. ?

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15
Q

How many different molecules can be made from six carbon atoms and twelve hydrogen atoms?

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16
Q

A container with liquid nitrogen is left in a laboratory, and its temperature is being recorded over a long period. The recorded temperature shows variations. Why?

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17
Q

Explain why F2 has weaker bond strength than Cl2 even the bond length of F is shorter than Cl?

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18
Q

How can we estimate the mass of the atmosphere?

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19
Q

Is a molecule only stable if C forms all 4 bonds?

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20
Q

Why is the sky blue?

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21
Q

Why is glass transparent but the sand that it is made from not?

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22
Q

Why do we use water to dilute solutions?

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23
Q

Why is vanadium so special?

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24
Q

When do you think oil will run out?

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25
Q

What determines whether an acid is strong or weak?

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26
Q

What is wrong with the Periodic Table?

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27
Q

What are the differences and similarities between diamond and graphite?

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28
Q

What would be the best way to distribute the covid vaccine to third world countries and in the harshest of climates?

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29
Q

The nucleus and electrons are oppositely charged. Why do electrons not crash into the
nucleus?

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30
Q

If you leave the fridge turned on in a thermally isolated room, what happens to the room?

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31
Q

How do forest fires spread so quickly?

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32
Q

How do the double bonds in a hydrocarbon affect its solubility?

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33
Q

How many pebbles would it take to fill a car?

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34
Q

How do you make aspirin?

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35
Q

How can you store large amounts of hydrogen?

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36
Q

How does DNA fingerprinting work? What is its use?

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37
Q

Draw the shape of the molecule B2H6?

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38
Q

Compare and contrast hydrochloric acid and phosphoric acid.?

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Yousaf Interview Imps (5 decks)

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