SAT (Stage-1) Mock Test

Result

SAT (Stage-1) Mock Test - 22

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which of the following gases, when burnt in air produces a sooty flame?

A
Marsh gas

B
Welding gas

C
Liquefied Petroleum Gas

D
None of these

Solution

A yellow sooty flame with lots of smoke is produced when unsaturated hydrocarbons are burned in air. This is because the percentage of carbon in alkenes and alkynes is higher and 21% oxygen in the air is not sufficient for their complete combustion. Smoke is produced due to the unburnt carbon particles indicating incomplete combustion.
Among the given options ethyne (welding gas) is an unsaturated hydrocarbon which burns in air producing yellow sooty flame.
However in the presence of pure oxygen ethyne and other unsaturated hydrocarbons will burn with a blue flame.
NOTE: The chief component of marsh gas is methane, which is a saturated hydrocarbon.
The chief component of L.P.G (Liquefied Petroleum Gas) is butane, which is a saturated hydrocarbon.

Question 2

1 / -0

Which among the following is a transition element?

Sb

Sn

Sc

Sr

Solution

Transition elements belong to the d-block of the periodic table.
Scandium(Sc) is a transition element.

Metal	Classification	Position in the periodic table
Antimony(Sb)	Metalloid	p-block
Tin (Sn)	Metal	p-block
Scandium (Sc)	Transition metal	d-block
Strontium(Sr)	Alkaline earth metal	s-block
Selinium (Se)	Metalloid	p-block

Question 3

1 / -0

Match the following organic acids in the column I with their relevant properties in the column II.

	Column I		Column II
(i)	Fatty acids	a.	present in the juice of lemons and other sour fruits and used as a flavouring and setting agent.
(ii)	Citrus acid	b.	Fat metabolism
(iii)	Amino acids	c.	used in dyeing and finishing textiles and paper
(iv)	Formic acid	d.	help in the development, growth and repair of the body cells

(i) - a, (ii) - d, (iii) - b, (iv) - c

(i) - a, (ii) - b, (iii) - d, (iv) - c

(i) - b, (ii) - a, (iii) - d, (iv) - c

(i) - c, (ii) - a, (iii) - d, (iv) - b

Solution

-	Column I	-	Column II
(i)	Fatty acids	b.	Fat metabolism
(ii)	Citrus acid	a.	present in the juice of lemons and other sour fruits and used as a flavouring and setting agent.
(iii)	Amino acids	d.	help in the development, growth and repair of the body cells
(iv)	Formic acid	c.	used in dyeing and finishing textiles and paper

Question 4

1 / -0

Match the following:

Name of base	Found in	Chemical formula
1. Ammonium hydroxide	a. Limewater	p. Mg(OH)₂
2. Magnesium hydroxide	b. Window cleaner solution	q. KOH
3. Calcium Hydroxide	c. Liquid soap	r. Ca(OH)₂
4. Potassium hydroxide	d. Milk of magnesia	s. NH₄OH

1 - b - s, 2 - d - p, 3 - a - q, 4 - c - r

1 - b - s, 2 - d - p, 3 - a - r, 4 - c - q

1 - b - p, 2 - d - s, 3 - a - r, 4 - c - q

1 - d - s, 2 - b - p, 3 - a - r, 4 - c - q

Solution

Ammonium hydroxide is a component of window cleaning solution and has the chemical formula NH₄OH.
Milk of magnesia contains Magnesium hydroxide which has the chemical formula Mg(OH)₂.
Lime water is an aqueous solution of calcium hydroxide and has the chemical formula Ca(OH)₂.
Potassium hydroxide is used in liquid soap and has the chemical formula KOH.

Question 5
1 / -0

Among the statements given below, which is factually correct.

I. The sting of both nettle plant and honey bee contains the same acid.
II. Rubbing calamine lotion on a wasp sting would provide relief.

A
Only I

B
Only II

C
Both I and II

D
Neither I nor II

Solution

Statement I is correct as the sting of a nettle plant and that of a honey bee both contain formic acid.
Statement II is incorrect as the sting of a wasp is alkaline and rubbing calamine lotion will not neutralize the alkali as it is also basic in nature. Calamine lotion is a combination of ZnO and 0.5% Fe₂O₃.
Question 6
1 / -0

Which of the following is not a combination reaction?

A
MgO + CO₂ → MgCO₃

B
Ba + F₂ → BaF₂

C
2Na + Cl₂ → 2NaCl

D
Zn + CuSO₄ → ZnSO₄ + Cu

Solution

Combination reactions are those reactions in which two or more elements or compounds react to give a single product. Therefore, options (1), (2) and (3) are combination reactions.
However, option (4) is not a combination reaction. It is a displacement reaction in which zinc, being more reactive than copper, displaces Cu from CuSO₄ to form ZnSO₄ and Cu.
Question 7
1 / -0

Consider the following reaction:

2H₂(g) + O₂(g) → 2H₂O(g)

Which of the following statements is true about the given reaction?

A
Combination of 2L of H₂ and 2 L of O₂ will produce 4L of water vapour.

B
The total volume of the gaseous mixture after the reaction will be 4L.

C
Combination of 2L of H₂ and 2L of O₂ will produce 2L of water vapour.

D
Combination of 2L of H₂ and 2L of O₂ will produce 3L of water vapour.

Solution

The balanced equation shows that for the complete reaction of H₂ gas the number of moles of O₂ required is half the number of moles of H₂.
And according to Avogadro's law, volume ratio = molar ratio
Hence, 2L of H₂ gas would react with 1L of O₂ gas to yield 2L of water vapour.
O₂ is the exces reagent and 1L of it will remain unreacted, so the total volume of the mixture after the reaction is 3L [2L of H₂O(g) and 1L O₂].
Question 8
1 / -0

What is the difference on a Fahrenheit scale if two temperatures differ by 25° on a Celsius scale?

A
25ºF

B
45°F

C
57ºF

D
120ºF

Solution

Difference in °F = 9/5 × Difference in °C
A 25 degree difference in Celsius would be 25 x 9/5 = 45 degrees Fahrenheit.
Question 9
1 / -0

What is the process of incorporating desirable characters into a crop called?

A
Hybridization

B
Agronomy

C
Tissue culture

D
Insemination

Solution

Plant hybridization is the process of crossbreeding between genetically dissimilar parents (with desirable characters) to produce a hybrid. It frequently results in polyploid offspring.
Question 10
1 / -0

Which of the following minerals is correctly matched with its deficiency disease?

A
Iodine - Beriberi

B
Sodium - Addison's disease

C
Iron - Hemophilia

D
Calcium - Bone fragility

Solution

Deficiency of calcium causes bone fragility as calcium is required for healthy bones.

Beriberi: A disease caused by a vitamin B-1 deficiency.
Addison's disease: A disorder in which the adrenal glands don't produce enough hormones.
Hemophilia A, also called factor VIII (FVIII) deficiency or classic hemophilia, is a genetic disorder caused by missing or defective factor VIII, a clotting protein.
Question 11
1 / -0

In which of the following organisms, RNA acts as the genetic material?

A
Rhizobium

B
Saccharomyces

C
Funaria

D
Tobacco mosaic virus

Solution

Tobacco mosaic virus (TMV) is a positive-sense single stranded RNA virus, genus tobamovirus that infects a wide range of plants, especially tobacco and other members of the family Solanaceae.
Question 12
1 / -0

Which of the following statement(s) is/are incorrect?

a. A mutation is the ultimate source of genetic variation.
b. The germ cells can fuse with each other even if the change in the number of chromosomes is severe enough.
c. Natural selection and genetic drift cannot operate unless there is genetic variation.
d. The central dogma describes the flow of genetic information in cells from DNA to messenger RNA (mRNA) to protein.

A
Only b and d

B
Only a

C
Only b

D
Only a and c

Solution

For the fusion of germ cells, it is necessary that they have the same number of chromosomes. So, statement in option b is incorrect. Rest of the statements are true.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

SAT (Stage-1) Mock Test - 22

Result

SAT (Stage-1) Mock Test - 22

Score

-

Rank

-

SHARING IS CARING

Question 1

Marsh gas

Welding gas

Liquefied Petroleum Gas

None of these

Solution

Question 2

Sb

Sn

Sc

Sr

Solution

Question 3

(i) - a, (ii) - d, (iii) - b, (iv) - c

(i) - a, (ii) - b, (iii) - d, (iv) - c

(i) - b, (ii) - a, (iii) - d, (iv) - c

(i) - c, (ii) - a, (iii) - d, (iv) - b

Solution

Question 4

1 - b - s, 2 - d - p, 3 - a - q, 4 - c - r

1 - b - s, 2 - d - p, 3 - a - r, 4 - c - q

1 - b - p, 2 - d - s, 3 - a - r, 4 - c - q

1 - d - s, 2 - b - p, 3 - a - r, 4 - c - q

Solution

Question 5

Only I

Only II

Both I and II

Neither I nor II

Solution

Question 6

MgO + CO2 → MgCO3

Ba + F2 → BaF2

2Na + Cl2 → 2NaCl

Zn + CuSO4 → ZnSO4 + Cu

Solution

Question 7

Combination of 2L of H2 and 2 L of O2 will produce 4L of water vapour.

The total volume of the gaseous mixture after the reaction will be 4L.

Combination of 2L of H2 and 2L of O2 will produce 2L of water vapour.

Combination of 2L of H2 and 2L of O2 will produce 3L of water vapour.

Solution

Question 8

25ºF

45°F

57ºF

120ºF

Solution

Question 9

Hybridization

Agronomy

Tissue culture

Insemination

Solution

Question 10

Iodine - Beriberi

Sodium - Addison's disease

Iron - Hemophilia

Calcium - Bone fragility

Solution

Question 11

Rhizobium

Saccharomyces

Funaria

Tobacco mosaic virus

Solution

Question 12

Only b and d

Only a

Only b

Only a and c

Solution

MgO + CO₂ → MgCO₃

Ba + F₂ → BaF₂

2Na + Cl₂ → 2NaCl

Zn + CuSO₄ → ZnSO₄ + Cu

Combination of 2L of H₂ and 2 L of O₂ will produce 4L of water vapour.

Combination of 2L of H₂ and 2L of O₂ will produce 2L of water vapour.

Combination of 2L of H₂ and 2L of O₂ will produce 3L of water vapour.