SAT (Stage-1) Mock Test

Result

SAT (Stage-1) Mock Test - 41

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

During fractional distillation of petroleum, the temperature is the highest in the lower parts of the fractional column. Different components of the mixture are collected at different levels in the fractional column.

Which of the following statements is correct, in context to refining of petroleum?

A
The component with a lower boiling point is collected in the lower parts of the fractional column.

B
The component with a higher boiling point is collected in the upper parts of the fractional column.

C
The component with a lower boiling point is collected in the upper parts of the fractional column.

D
The component with the least boiling point is the first to be collected.

Solution

The component with a lower boiling point is collected in the upper parts of the fractional column. This is because the boiling point of the liquid is also the point of condensation of the vapour. Thus, the component with lower boiling points will condense at lower temperatures, that is in the upper regions of the fractional column.
Question 2
1 / -0

Non-metals are

A
good reducing agents

B
good oxidising agents

C
sonorous

D
lustrous

Solution

Non-metals are good oxidising agents because they are electronegative elements. They accept electrons and get reduced themselves. Hence, they function as oxidising agents.
Question 3
1 / -0

____________ are examples of ferrous alloys.

A
Bronze and Brass

B
Stainless steel and Steel

C
Brass and Solder

D
Gun metal and German silver

Solution

Stainless steel and steel are ferrous alloys. The major component of these alloys is iron and other elements like carbon, nickel and chromium are added in order to enhance the properties of iron.
Question 4
1 / -0

Which of the following is not a metalloid?

A
Silicon

B
Germanium

C
Krypton

D
Arsenic

Solution

This is the correct option. Krypton is not a metalloid. It is a non-metal.
Question 5
1 / -0

A mixture of water and alcohol can be separated by

A
evaporation

B
separating funnel

C
distillation

D
None of these

Solution

Water and alcohol are miscible liquids and differ in their boiling points by more than 25 K.
Hence, they can be separated by distillation.
Question 6
1 / -0

Going by the quantum mechanics model of the structure of an atom, the electrons in which of the following orbitals will have the same n + l values, where 'n' is the principal quantum number and 'l' is the azimuthal quantum number?

A. 2p and 3s
B. 1s and 2p
C. 3p and 4s
D. 3d and 5s

A
B and D

B
B, C, D

C
A, C, D

D
A, B, C

Solution

A is the correct option, as:
(n + l) for 2p = 2 + 1 = 3
(n + l) for 3s = 3 + 0 = 3

C is the correct option, as:
(n + l) for 3p = 3 + 1 = 4
(n + l) for 4s = 4 + 0 = 4

D is the correct option, as:
(n + l) for 3d = 3 + 2 = 5
(n + l) for 5s = 5 + 0 = 5
Question 7
1 / -0

Which of the following compounds having the formula C₅H₁₀ will produce a clean blue flame when burnt in air?

A
2-Methylbutene

B
3-Methylbutene

C
1,2-Dimethyl cyclopropane

D
Pent-2-ene

Solution

The given formula is that for alkenes and cycloalkanes.
Unsaturated compounds produce a clean blue flame only when burnt in pure oxygen.
In the presence of 21% oxygen, they burn with a sooty flame.
Question 8
1 / -0

In the group of alkali metals, the physical quantity that decreases down the group is:

A
Atomic radius

B
Melting point

C
Metallic character

D
Number of shells

Solution

The melting point of the alkali metals decreases down the group.
All the other properties increase down the group.
The number of shells and hence the atomic radius increases down the group.
The ionisation energy of the alkali metals decreases down the group and hence the metallic character increases.
Question 9
1 / -0

A species has 2 units of negative charge and the number of neutrons is 2 more than the the number of protons. If the mass number of the species is 34, identify the species and the number of electrons.

A
S^-2, 16 electrons

B
O^-2, 8 electrons

C
S^-2, 18 electrons

D
O^-2, 10 electrons

Solution

Let the number of protons be x.
Number of neutrons = x + 2
p + n = A
x + x + 2 = 34
x = 16
Hence, the element is sulphur and the species is sulphide ion (S^-2).
Number of electrons = 16 + 2 = 18
Question 10
1 / -0

Meristematic cells contain all of the following organelles, except:

A
Cell wall

B
Nucleus

C
Cytoplasm

D
Vacuole

Solution

Vacuoles are absent in meristematic tissue. Vacuole is a cell organelle used to store waste materials, nutrients, excess salts, etc. and usually big and more in number in mature cells. Meristematic cells are mainly concerned with cell division by mitosis. They do not have any waste material to store, so vacuoles are usually absent in the meristematic cells.
Question 11
1 / -0

Suberin is generally found in

A
cork cells

B
epidermal cells of desert plants

C
collenchymatous cells

D
sclerenchymatous cells

Solution

Cells of cork are dead and have a chemical called suberin in their walls that makes them impervious to gases and water.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

SAT (Stage-1) Mock Test - 41

Result

SAT (Stage-1) Mock Test - 41

Score

-

Rank

-

SHARING IS CARING

Question 1

The component with a lower boiling point is collected in the lower parts of the fractional column.

The component with a higher boiling point is collected in the upper parts of the fractional column.

The component with a lower boiling point is collected in the upper parts of the fractional column.

The component with the least boiling point is the first to be collected.

Solution

Question 2

good reducing agents

good oxidising agents

sonorous

lustrous

Solution

Question 3

Bronze and Brass

Stainless steel and Steel

Brass and Solder

Gun metal and German silver

Solution

Question 4

Silicon

Germanium

Krypton

Arsenic

Solution

Question 5

evaporation

separating funnel

distillation

None of these

Solution

Question 6

B and D

B, C, D

A, C, D

A, B, C

Solution

Question 7

2-Methylbutene

3-Methylbutene

1,2-Dimethyl cyclopropane

Pent-2-ene

Solution

Question 8

Atomic radius

Melting point

Metallic character

Number of shells

Solution

Question 9

S-2, 16 electrons

O-2, 8 electrons

S-2, 18 electrons

O-2, 10 electrons

Solution

Question 10

Cell wall

Nucleus

Cytoplasm

Vacuole

Solution

Question 11

cork cells

epidermal cells of desert plants

collenchymatous cells

sclerenchymatous cells

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

S^-2, 16 electrons

O^-2, 8 electrons

S^-2, 18 electrons

O^-2, 10 electrons