All Analytical and Logical Reasoning MCQs

Question 1

The rate of a chemical reaction is obtained by dividing the amount of a chemical consumed in a reaction by the time in which the chemical is consumed. The rate at which a chemical reaction occurs is dependent on many variables, two of which are the concentration of a chemical in solution and the temperature at which the reaction occurs. In order to determine the effect of concentration and temperature on reaction rates, a chemist studied the following reaction sequence.HCHO + Na2SO3 + H2O → NaO3SOCH3 + NaOHReaction 1NaOH+ NaHSO3 → Na2SO3 + H2OReaction 2While Reaction 1 occurs slowly, Reaction 2 happens instantaneously. Both of the reactions occur in the same solution and base (NaOH) is built up in solution until all the NaHSO3 is used. Phenolphthalein, which is also in the solution, will cause the solution to turn pink when a measurable amount of base is present.Experiment 1:A standard solution of formaldehyde (HCHO) in water was prepared. This solution contained 0.3 mole of HCHO per liter of solution (0.3 M HCHO) and a small amount of phenolphthalein. This solution was diluted further with varying amounts of water and mixed with 10.0 mL of a 0.01 M solution of both Na2SO3 and NaHSO3 in water. The time required for pink color to appear is shown in Table 1.Which of the following trials in Experiment 1 had the same concentration of HCHO as in all the trials of Experiment 2?

Accepted Answer

Trial 4

Answer

Trial 2

Answer

Trial 8

Answer

Trial 9

Question 2

The rate of a chemical reaction is obtained by dividing the amount of a chemical consumed in a reaction by the time in which the chemical is consumed. The rate at which a chemical reaction occurs is dependent on many variables, two of which are the concentration of a chemical in solution and the temperature at which the reaction occurs. In order to determine the effect of concentration and temperature on reaction rates, a chemist studied the following reaction sequence.HCHO + Na2SO3 + H2O → NaO3SOCH3 + NaOHReaction 1NaOH+ NaHSO3 → Na2SO3 + H2OReaction 2While Reaction 1 occurs slowly, Reaction 2 happens instantaneously. Both of the reactions occur in the same solution and base (NaOH) is built up in solution until all the NaHSO3 is used. Phenolphthalein, which is also in the solution, will cause the solution to turn pink when a measurable amount of base is present.Experiment 1:A standard solution of formaldehyde (HCHO) in water was prepared. This solution contained 0.3 mole of HCHO per liter of solution (0.3 M HCHO) and a small amount of phenolphthalein. This solution was diluted further with varying amounts of water and mixed with 10.0 mL of a 0.01 M solution of both Na2SO3 and NaHSO3 in water. The time required for pink color to appear is shown in Table 1.If Reaction 1 was found to be exothermic (heat producing), How could Experiment 1 be modified to examine only the effect of concentration on reaction rate?

Accepted Answer

The concentration of HCHO could be increased

Answer

The concentration of formaldehyde could be used to determine the color change

Answer

A different method could be used to set the solution to a constant temperature

Answer

The temperature of the solution could be increased

Question 3

The rate of a chemical reaction is obtained by dividing the amount of a chemical consumed in a reaction by the time in which the chemical is consumed. The rate at which a chemical reaction occurs is dependent on many variables, two of which are the concentration of a chemical in solution and the temperature at which the reaction occurs. In order to determine the effect of concentration and temperature on reaction rates, a chemist studied the following reaction sequence.HCHO + Na2SO3 + H2O → NaO3SOCH3 + NaOHReaction 1NaOH+ NaHSO3 → Na2SO3 + H2OReaction 2While Reaction 1 occurs slowly, Reaction 2 happens instantaneously. Both of the reactions occur in the same solution and base (NaOH) is built up in solution until all the NaHSO3 is used. Phenolphthalein, which is also in the solution, will cause the solution to turn pink when a measurable amount of base is present.Experiment 1:A standard solution of formaldehyde (HCHO) in water was prepared. This solution contained 0.3 mole of HCHO per liter of solution (0.3 M HCHO) and a small amount of phenolphthalein. This solution was diluted further with varying amounts of water and mixed with 10.0 mL of a 0.01 M solution of both Na2SO3 and NaHSO3 in water. The time required for pink color to appear is shown in Table 1.The fastest rate of reaction in Experiment 1 occurred when:

Accepted Answer

The concentration of NaOH was greatest in the reaction mixture

Answer

The time for the color change to occur was greatest

Answer

The concentration of NaOH was smallest in the reaction mixture

Answer

The concentration of HCHO was greatest in the reaction mixture

Question 4

The rate of a chemical reaction is obtained by dividing the amount of a chemical consumed in a reaction by the time in which the chemical is consumed. The rate at which a chemical reaction occurs is dependent on many variables, two of which are the concentration of a chemical in solution and the temperature at which the reaction occurs. In order to determine the effect of concentration and temperature on reaction rates, a chemist studied the following reaction sequence.HCHO + Na2SO3 + H2O → NaO3SOCH3 + NaOHReaction 1NaOH+ NaHSO3 → Na2SO3 + H2OReaction 2While Reaction 1 occurs slowly, Reaction 2 happens instantaneously. Both of the reactions occur in the same solution and base (NaOH) is built up in solution until all the NaHSO3 is used. Phenolphthalein, which is also in the solution, will cause the solution to turn pink when a measurable amount of base is present.Experiment 1:A standard solution of formaldehyde (HCHO) in water was prepared. This solution contained 0.3 mole of HCHO per liter of solution (0.3 M HCHO) and a small amount of phenolphthalein. This solution was diluted further with varying amounts of water and mixed with 10.0 mL of a 0.01 M solution of both Na2SO3 and NaHSO3 in water. The time required for pink color to appear is shown in Table 1.Which of the following experiments would most likely produce more information about other variables that affect the rates of these reactions?

Accepted Answer

Conducting Experiment 1 with smaller amounts of HCHO

Answer

Conducting Experiment 1 with larger concentrations of HCHO

Answer

Adding NaOH to the HCHO solution in Experiment 1

Answer

Varying the concentrations of Na2SO3 and NaHSO3 while keeping the HCHO concentration constant

Question 5

The rate of a chemical reaction is obtained by dividing the amount of a chemical consumed in a reaction by the time in which the chemical is consumed. The rate at which a chemical reaction occurs is dependent on many variables, two of which are the concentration of a chemical in solution and the temperature at which the reaction occurs. In order to determine the effect of concentration and temperature on reaction rates, a chemist studied the following reaction sequence.HCHO + Na2SO3 + H2O → NaO3SOCH3 + NaOHReaction 1NaOH+ NaHSO3 → Na2SO3 + H2OReaction 2While Reaction 1 occurs slowly, Reaction 2 happens instantaneously. Both of the reactions occur in the same solution and base (NaOH) is built up in solution until all the NaHSO3 is used. Phenolphthalein, which is also in the solution, will cause the solution to turn pink when a measurable amount of base is present.Experiment 1:A standard solution of formaldehyde (HCHO) in water was prepared. This solution contained 0.3 mole of HCHO per liter of solution (0.3 M HCHO) and a small amount of phenolphthalein. This solution was diluted further with varying amounts of water and mixed with 10.0 mL of a 0.01 M solution of both Na2SO3 and NaHSO3 in water. The time required for pink color to appear is shown in Table 1.The function of phenolphthalein in both experiments was to:

Accepted Answer

Signal when the NaOH was completely used up

Answer

Signal when the HCHO was completely consumed

Answer

React with the HCHO solution

Answer

Alter the rate of reaction

Question 6

A newsagent sells four different puzzle magazines. Information about these magazines is given in the following table.Jemina went into the newsagent yesterday to buy one of these magazines. She chose the one that offered her the least cost per puzzle.Which magazine did Jemina choose?

Accepted Answer

Puzzlemania

Answer

Thinking Today

Answer

Number Crunch

Answer

Mathematical Genius

Question 7

A rectangular strip of card is folded to make the following shape.Which one of the following cards, if folded along the lines indicated, could result in this shape?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 8

Mrs Jones has recently sought quotes to build a fence from five companies. The companies charge similar prices for each item. Unfortunately, her young son cut four of the quotes in half while playing with scissors. She has one complete quote, shown below.The 8 halves of quotes have been labelled P, Q, R, S and 1, 2, 3, 4.Which of the following solutions matches the correct halves of the quote?

Accepted Answer

P4 Q1 R2 S4

Answer

P2 Q4 R8 S1

Answer

P4 Q11 R2 S6

Answer

P1 Q2 R1 S3

Question 9

I want to cut 10 identical rectangles, each 6cm x 10cm, from rectangular plastic boards that are 15cm x 20cm. Each of the 10 rectangles must be cut out as one piece - joins are not allowed.What is the smallest number of plastic boards that I can use?

Accepted Answer

4

Answer

2

Answer

3

Answer

5

Question 10

In a restaurant recently, I received the following bill:What percentage of the cost of the food and drink had been added to the bill as the service charge?

Accepted Answer

12.5%

Answer

11.1%

Answer

14.0%

Answer

15.0%

Question 11

Ed wants to represent his favourite superheroes using graphs. The data for his favorite superheroes is listed below along with three of the four graphs.Which superhero's graph has yet to be drawn?

Accepted Answer

Powfist

Answer

Fiesta

Answer

Camoror

Answer

Sgirk

Question 12

Many people were worried when they found that their photocopiers had been sometimes changing numbers on one photocopy; sometimes, although not always, changed 6 into 8.A list of prices was copied on this photocopier. The first five prices on the copy are shown below.$54.80$60.00$65.40$70.80$78.20In the original list, the prices had increased by the same amount each time.What was the next price on the original list?

Accepted Answer

$81.60

Answer

$81.80

Answer

$83.60

Answer

$85.60

Question 13

A tramway links the towns of Peafort and Yubridge. The daily timetable is shown below.Which is the only station from which two trams depart in opposite directions at the same time as each other?

Accepted Answer

Teedon

Answer

Kewham

Answer

Arcaster

Answer

Essley

Question 14

A die and its net is shown below.The die is rotated a half turn about each of the three axes in succession. Which face is on the top of the die as a result?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 15

William buys a bus ticket every day, Monday to Friday, for $2.50. The bus company has just introduced a card which can be bought to get a discount on all bus fuels.Each carals valid for 4 weeks. William has worked out that he will pay exactly the same amount for the card as he will if he continues to buy tickets at the normal price. Which of the following could be the price and discount for the card?

Accepted Answer

$5 for the card and a discount of 10% on ticket prices

Answer

$5 for the card and a discount of 50% on ticket prices

Answer

$10 for the card and a discount of 50% on ticket prices

Answer

$10 for the card and a discount of 80% on ticket prices

Question 16

Mr and Mrs Porter drove down to see Sweeney. Mr Porter drove the first 20km on the way there, and Mrs Porter drove the rest of the way. On the return journey, she drove the first 30km and he drove the rest. How much farther did Mrs Porter drive than Mr Porter?

Accepted Answer

20km

Answer

No farther

Answer

10km

Answer

There is not enough information to work it out

Question 17

Gemma is on a coach trip. After a short sleep, she has woken up just in time to see this sign on the side of the motorway:The last thing she remembers seeing before she fell asleep is this sign:How far has the coach travelled while Gemma has been asleep?

Accepted Answer

56 km

Answer

4 km

Answer

17 km

Answer

39 km

Question 18

Monthly Sales of New Cars in Illyria are always highest in March and September.At the each of month the sales figure from the 1st january up to the enf of that month are recorded.These figures are then presented on a chart.Which of the four charts below could represent the car sales in Illyria?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 19

This morning I took my three children to an internet cafe. Jay used the internet for 37 minutes and was charged $17.40, whilst Kay's 56 minutes cost $20.25 and Harry had to pay $19.05 for the 48 minutes that he spent online.Which of the following formulae does this cafe use to charge for its internet facilities?

Accepted Answer

$8.15 + $0.25 per minute

Answer

$8.65 + $0.30 per minute

Answer

$9.05 + $0.20 per minute

Answer

$11.85 + $0.15 per minute

Question 20

Andy wants a challenge and he has decided to cycle from Jamestown to Country End, a distance of 1600km. He never cycles more than 150km each day, but in order to conserve his energies, he has decided on the following restrictions:- After he has cycled 150km for each of two consecutive days he will cycle only 75km the next day.- On Saturdays he will cycle only 75km and on Sundays he will have a rest day.- On each day he will cycle the maximum permitted within these restrictions.Andy will leave Jamestown early on a Wednesday morning.If he completes the ride without any unexpected delays, on what day of the week will Andy arrive in Country End?

Accepted Answer

Wednesday

Answer

Monday

Answer

Tuesday

Answer

Thursday

All Free Analytical and Logical Reasoning MCQs with Answers