test no.1, season1 with key and solution

Season:1

Test No: 1

Chapters : phy-1, chem-1, bioloogy,1

Category: Easy , Medium , Hard

Total MCQs; 90

The number of significant fiures in the measurement of 5.005x 10^-5 s is;

a. 2 b. 3

c. 4 d 5

The scientific notation of a number 0.0023 is expressed as:

A) 2.3 × 10^-3 B) 0.023 × 10^-2

C)2.3 × 10^-4 D) 0.2 × 10³

If 7.635 & 4.81 are two significant numbers, their multiplication in significant digit is

(a) 36.72435 (b) 36.724

The number of significan figures in 4.0030 is;

(a) Four (b) Five

The number of significant figures in the measurement x = 10.00300

(a) 7 (b) 8

The number of significant figures in the measurement of 5.05 ´ 10^-3 m/s is;

(a) 2 (b) 3

In simple electrical circuit the current in a resistor is measured as 2.50+0.05mA. the resistor is marked as having a value of 4.7 2%. if these values where used to calculate the power dissipated in the percentage uncertainty in the value obtained

a. 2% b. 4% c. 6% d. 8%

Planck’s constant has the dimension of:

a. Energy b. Work

c. Linear momentum d. Angular momentum

If an atom exists in the excited state n = 5, the maximum number of transition takes place is: [ -182 MEd]

(a) 6 (b) 5

10)

Plasma membrane are 7nm wide and its structure is

a. Dynamic

b. Amorphous

c. Crystalline

d. Non of these

11)

The soluble part of cytoplasm which forms ground substances are called

a. Cytosol

b. Nucleus

c. Gelcyto

d. All of these

12)

Function of rough endoplasmic reticulum

a. Lipid syntheises

b. Protein syntheises

c. Detoxification

d. cIrculation

13)

Nucleus was discovered by Robert brown in

a. 1938

b. 1738

c. 1938

d. 1838

14)

The attachment of two sub-units of ribosomes along mRNA is controlled by

a. Iron ion

b. Hamenoglobin

c. Copper ion

d. Magnesium ion

15)

Secondary wall, primary wall and middle lamella are layers of plant cell

a. From inside to outside

b. From outside to inside

c. These are not layers of plant

d. Present only in gymnosperm

16)

The ability of an instrument to reveal the minor details of an object is its

a. Magnifying power

b. Resolving power

c. Magnification

d. Non of these

17)

Growth movement of pollen tube towards the egg is

a. Hetrotrophism

b. Chemotropism

c. Phototrophism

d. All of these

18)

Size of ribosome in prokaryotic cell is

a. 70S

b. 80S

c. Both

d. Non of these

19)

Size of ribosome in eukaryotic cell is

a. 70S

b. 80S

c. Both

d. Non of these

20)

An orbital may never be occupied by: -58 MEd]

(a) 1 electron (b) 2 electrons

21)

Nitrogen has three unpaired electrons according to: -158 MEd]

(a) Hund’s rule (b) Aulban rule

22)

The atomic number of scandium is 21. What is its ground state electronic configuration? [ -08, ], [ -92 MEd]

(a) 1s²2N²2p⁶3N²3p⁶3d³

(b) 1s²2N²2p⁶3N²3p⁶3d³4s¹

(d) 1s²2N²2p⁶3N²3p⁶3d³4p¹

23)

The correct electronic configuration of Nickel (28) is: [ -118 MEd]

(a) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁸ 4s²

(b) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁷ 4s² 4p¹

(d) 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶ 4s¹ 4p³

24)

The electronic configuration of gallium, atomic number 31 is: [ -172 MEd]

(a) (b)

25)

Which is incorrect about ionization energy? [ -98 MEd]:

(a) Ionization energy Depends upon the magnitude of nuclear charge.

(b) Ionization energy depends upon the atomic radius

(d) Ionization energy does not depend upon the penetration effect of the inner orbital. .

26)

Select the incorrect Statement: [ -104 MEd]

(a) Molecule may gain electron to form molecular anion.

(b) Molecule may lose electron to form molecular cation.

(d) These molecular ions can be forMEd] by passing high energy electron beam through a gas.

27)

Ruther ford's scattering experiment demonstrate: [ -133 MEd]

a) The existence of X-rays.

b) The existence of α-particles.

c) The mass to charge ratio of electron.

d) The nuclear model of the atom.

28)

Which is incorrect statement? [ -143 MEd]

(a) The ionic bonds are non directional in character.

(b) The crystals of covalent compounds are made up of molecules.

(d) Ionic compounds have high melting point and boiling point.

29)

What are the values of principal quantum number and azimuthal quantum number for the last electron in Chlorine atom? [ -87 MEd]

(a) 1.6 (b) 1.3

30)

In paper chromatography we use

a. Water removed from paper

b. Water absorbed on papers

c. Data from barometer

d. Manometer

31)

For separation of compounds from mixture use a technique called

a. Micrometer

b. Microscope

c. Auriscope

d. Chromatography

32)

The growth and reproduction of eukaryotic cell is dependent upon its

a. Nucleus

b. Cytoplasm

c. Both

d. DNA

33)

Cell wall of cells are held together by

a. Priomary wall

b. Secondary wall

c. Middle lamella

d. Non of these

34)

The membrane is like sea of lipids in which proteins are floating

a. Unit membrane model

b. Fluid mosaic model

c. Roberston model

d. Non of these

35)

The cisternae together with vasicles are called

a. Multi cisternae

b. Golgi complex

c. Cirovasicle

d. Non of these

36)

Lysosomes contain variety of enzymes called

a. Peroxygenase

b. Peroxidase

c. Hydrolases

d. lyases

37)

Protein extending in double layer of lipids completely are called

A. Intrinsic

B. Extrinsic

C. Permeases

D. Non of these

38)

The thickness of primary wall

a. 1 µ m

b. 1 – 3 µ m

c. 5 – 10 µ m

d. 1 mm

39)

Choose atom that is not having a spin quantum number . [ -198 MEd]

(a) C¹³ (b) N¹⁵

40)

Suppose A=BC, where A has the dimesnsion L/M and C has the dimension L/T. then B has the dimension

a. T/M b. L² /TM

c. TM/L² d. L² T/M

41)

The unit of planks constant is same is that of:

a. angular momentum b. work

c. force d. torque

42)

Which one of the following is both unitless and dimentionless

a. angle b. solid angle

c. mechanical equivalent of heat d. refractive index

43)

The dimensions of Planck constant are;

a. [MLT^-2] b. [ML²T^-1]

c. [MLT^-3] d. [ML²T^-2]

44)

Which of the following pairs have the same units and dimensions? :

A) Resistance and resistivity

B) Conductivity and resistivity

C) Electromotive force & potential difference

D) Resistivity & temperature coefficient of resistivity

45)

Which one is correct formula for finding the speed, V of ocean waves in terms of the density p of sea water, the accelaration of free fall g, depth, h of the ocean & the wavel th l? - :

(a) v = (b) v =

c) v = (d) v =

46)

Suppose A = BC, where A has the dimension L/M and C has the dimension L/T. Then B has the dimension: -

(a) T/M (b) L²/TM

47)

What is the ratio of 1 Gm/1µm? :

(a) 10^-3 (b) 10^-7

48)

Some protein are on one side of membrane called

A. Intrinsic

B. Extrinsic

C. Permeases

D. Non of these

49)

Carbohydrates attached to lipids are called

a. Glycolipid

b. Glycoprotein

c. Permease

d. lipoprotein

50)

Carbohydrates attached to proteins are called

a. Glycolipid

b. Glycoprotein

c. Permease

d. lipoprotein

51)

Lipid bilayer is covered with protein and protein pores, this model was presented by

a. Gorter & Grendel 1925

b. J f Danielle & Davon 1935

c. Roberston 1959

d. S J Singer & G L Nicholson 1972

52)

Two layers of lipid molecules only, this model was presented by

a. Gorter & Grendel 1925

b. J f Danielle & Davon 1935

c. Roberston 1959

d. S J Singer & G L Nicholson 1972

53)

Unit membrane model was suggested by

a. Gorter & Grendel 1925

b. J f Danielle & Davon 1935

c. Roberston 1959

d. S J Singer & G L Nicholson 1972

54)

Channels of endoplasmic reticulum are separated from one another by spherical or tubular membranes one above another called

a. Vesicle

b. Crista

c. Cisternae

d. Non of these

55)

The prefix ‘Pico’ stands for:

(a) 10⁶ (b) 10⁹

56)

When hydrogen gas is enclosed in a discharge tube using low pressure, it emits: [ -08 ]

(a) Green light (b) Blue light

57)

Which of the following elements with the given electronic configuration has the highest ionization energy? [ -148 ]

(a) 1S² 2S² 2P⁴ (b) 1S² 2S² 2P³

58)

Shown below are portion of orbital diagrams representing the ground state electronic configuration of certain elements. Which of them obeys the Pauli’s exclusion principle? Hund’s rules? [ -98 MEd]

(a)

(b)

(c)

(d)

59)

Which of the following electromagnetic waves has the smallest wavel ]th? [ -158 MEd]

(a) X-rays (b) Gamma rays

60)

Choose atom that is not having a spin quantum number . [ -198 MEd]

(a) C¹³ (b) N¹⁵

61)

X-rays are widely used as a diagnostic tool in MEd]icine because of its: [ -64 MEd]

(a) Particle property

(b) Cost of X-ray unit is low

(d) It is not electromagnetic waves

62)

9.5 × 10¹⁵m when rounded off 40 is 10¹⁶ m which is equal to :

(a) Tera meter (b) Atto meter

63)

The measurement of physical quantity may be subject to random errors and to systematic errors. Which statement is correct? :

(a) Random errors are always caused by the person taking the measurement.

(b) A systematic error cannot be reduced

(d) A systematic error results in a different reading each time the measurement is taken.

64)

The total energy of a Hydrogen atom in its ground state is: [ -26 MEd]:

(a) zero (b) positive

65)

Circulation, syntheses, detoxification, mechanical support and communication

a. Peroxisome

b. Endoplasmic reticulum

c. Nucleus

d. cytoplasm

66)

In cytoplasm, small ions and molecules form

a. True solution

b. Colloidal solution

c. Neutral solution

d. suspension

67)

In cytoplasm, some large molecules form

a. True solution

b. Colloidal solution

c. Neutral solution

d. Suspension

68)

Active mass movement of cytoplasm is called

a. Cyclosis

b. Amoeboid movement

c. Locomotion

d. Non of these

69)

Chloroplast is present in

a. Green parts of plants

b. Other than green parts

c. Colourless parts

d. All of these

70)

Chromoplast is present in

a. Green parts of plants

b. Other than green parts

c. Colourless parts

d. All of these

71)

Leucoplast are present in

a. Green parts of plants

b. Other than green parts

c. Colourless parts

d. All of these

72)

RER synthesizes

a. Protein

b. Primary lysosome

c. Protein and primary lysosome

d. Lipids

73)

Primary lysosomes are synthesized in RER and processed in

a. Peroxisome

b. Endoplasmic reticulum

c. Nucleus

d. Golgi apparatus

74)

Ribosomes are synthesized in

a. Peroxisome

b. Endoplasmic reticulum

c. Nucleus

d. Nucleolus of nucleus

75)

The energy of electron in the excited state n=4 in hydrogen atom is:[ -174 MEd]:

(a) -13.6eV (b) -3.4eV

76)

The part of electromagnetic spectrum in which Lyman series lies is: [ -110 MEd]:

(a) Visible region (b) Infrared region

77)

Which one of the following series are observed in the visible region of electromagnetic radiation. 2005-01 MEd]:

(a) Lyman series (b) Balmer series

78)

Transition from n = 4,5,6…………….. to n = 3 in hydrogen spectrum gives 2007-99 MEd]

(a) Balmr series (b) Lyman series

79)

The wave nature of an electron is illustrated by its: [ -103 MEd]

(a) photoelectric effect (b) Compton effect

80)

A ball of mass 1 gram is moving with a velocity of . The De-broglie wavel ]th of the ball is: -172 MEd]

(a) (b)

81)

How many different values can m, assume in the electron sub-shell designated by quantum number n=5, 1=4? [ -108 MEd]

(a) 4 (b) 5

82)

Select the reaction when the supply of air is very limited. [ -146 MEd]

(a) CH₄ + 20₂®CO₂ + 2H₂O + heat

(b) 2CH₄ + 3O₂® 2CO₂ + 4H₂O + heat

(d) 2CH₄ + 2O₂® 2C + 4H₂O + heat

83)

2XeF₆ + SiO₂® 2XeOF₄ + SiF₄ Consider the above chemical reaction. If 122.6 g of XeF₆ reacts with 60 g of SiO₂ to form the products. Select the limiting reagent and amount of SiF₄ forMEd]: (XeF₆ 245.3 amu, SiO₂ = 60 amu, SiF₄ = 104 amu) [ -28 MEd]

(a) XeF₆, 26 g (b) SlO₂, 26 g

84)

How many oxygen atoms are present in 278g of Hydrated Ferrous Sulphate? [ -52 MEd]

(FeSO₄.7Hz 0 = 278 any)

(a) 6.023 ´ 10²³ (b) 6.525 ´ 10²⁴

85)

The ^two sub units are attached by

a. Mg ^{+ +}

b. Ca ^{+ +}

c. Fe ^{+ +}

d. Non of these

86)

The unit of Golgi apparatus

a. Dictysomes

b. Permease

c. Cisternae

d. Vesicle

87)

Stacks of flattened, membrane bounded sacs called

a. Vesicle

b. Crista

c. Cisternae

d. Non of these

88)

Glyoxisomes contains

a. Glycolic acid

b. Catalase

c. Urease

d. All of these

89)

Each centriole consist of ……. Tubules

a. 9

b. 27

c. 20

d. 30

90)

Circulation, syntheses, detoxification, mechanical support and communication

a. Peroxisome

b. Nucleus

c. Nucleus

d. Endoplasmic reticulum

1)	c	The zero between two significant figure is also significant and power is not counted in significant figures.
2)	A	2.3 × 10^-3. Decimal moved to right after first non zero digit and sign of power will be negative while moving to right
3)	B	Answer should be carried to least significant figure operation i.e. 4.81 which are to be multiplied.
4)	B	Zero after decimal to the right are also significant
5)	A	Zero after decimal to the right are also significant because it sow least count of measuring instrument
6)	b	Number in powers are in included in significant figures
7)	c	P=VI=IRI=I2%I=2+2+2=6% Uncertainty in I=0.05/2.50 x100=2%
8)		P=V²/R=VV/R=3%3%/2%=3+3+2=8%
9)	D	E=hf→h=E/f=Et=Wt =Frt=mart=mvrt/t=mvr = pr = Angular momentum
10)	C	# of transition (spectral lines) = = = = 10
11)	a
12)	a
13)	b
14)	d
15)	d
16)	b
17)	b
18)	b
19)	a
20)	b
21)	C
22)	A
23)	C
24)	A
25)	A
26)	D
27)	C
28)	D
29)	C
30)	C
31)	b
32)	d
33)	a
34)	c
35)	b
36)	b
37)	c
38)	a
39)	a
40)	D
41)	A	A=BC thus B=A/C (putting dimesnsion of both A and C) we get B= = T/M
42)	A	L=rp=rmv=rms/t= m kg m/s= kg m² /s E=hf→h=E/f=ET=wt=Fdt=madt=mdvt/t=mdv=mds/t=kg m m /s = kg m² /s
43)	A	Angle is ration between two l th so it has no unit and no dimension.
44)	b	E=hf →h=E/f=ET=k.E t= M (L²/T²) T= ML²T^-1. Not dimesntion for all types of energy are same
45)	C	Electromotive force & potential differenc both have same dimension
46)	A	For valid formula dimension of both sides are same; v = = = = m/s = Velocity.
47)	A	A=BC→ B=
48)		exa →E →10¹⁸ peta →P→ 10¹⁵ tera →T →10¹² giga →G→ 10⁹ mega→ M→ 10⁶ kilo →k→ 10³ hecto →h→ 10² deka →da→ 10¹ deci →d→ 10⁻¹ centi →c→ 10⁻²
49)	D	1Gm =Gaga meter = 10⁹,1µm = micro meter = 10^-6 Thus; 1Gm/1µm = = 10⁹ × 10⁶ = 10¹⁵)
50)
51)	1 – 3 µ m
52)	5 – 10 µ m
53)	b
54)	A
55)	B
56)	B
57)	A
58)	C
59)	C
60)	C	Pice = 10^-12
61)	B
62)	B
63)	C
64)	C
65)	D
66)	C
67)	D	as Peta = 10¹⁵ so Light year = 9.5 × 10¹⁵ m = peta meter
68)	C	Random errors can be reduced by taking average of several measurements
69)	C
70)	B
71)	A
72)	B
73)	A
74)	A
75)	B
76)	C
77)	A
78)	D
79)	D
80)	C
81)	C
82)	B
83)	C
84)	D
85)	C
86)	D
87)	D
88)	A
89)	B
90)	D

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