PYQ Vault
Bank
Guides
Notes
NDA
Sign in
Filtered questions
4,860 questions match
Filters
1
Download
· 4860
Filtering by:
Exam: NDA
Clear all
Copy link
Q3301
#3301
Chemistry → Chemical Reactions → Types of Reactions: Combination, Decomposition, Displacement
·
Moderate
Consider the following reaction :
Fe
2
O
3
(s)
+
2
Al(s)
→
2
Fe(s)
+
Al
2
O
3
(s)
\text{Fe}_2\text{O}_3\text{(s)} + 2\text{Al(s)} \rightarrow 2\text{Fe(s)} + \text{Al}_2\text{O}_3\text{(s)}
Fe
2
O
3
(s)
+
2
Al(s)
→
2
Fe(s)
+
Al
2
O
3
(s)
Which of the following statements about the given reaction is NOT correct?
Add
Playbook: Chemical Reactions
A
It is an example of displacement reaction
B
It is highly endothermic reaction
C
Fe
2
O
3
\text{Fe}_2\text{O}_3
Fe
2
O
3
acts as oxidizing agent
D
This reaction is applicable to joining of railway tracks
Tap an option to check your answer.
Show solution
[Q61 · Sep · 2023]
Report
Q3302
#3302
Chemistry → Chemical Reactions → Types of Reactions: Combination, Decomposition, Displacement
·
Hard
Match List I with List II and select the correct answer using the code given below the Lists: List I (Chemical process) | List II (Reaction) A. Electrolysis of water | 1. Double displacement reaction B. Burning of coal | 2. Combination reaction C. Iron nail immersed in copper sulphate solution | 3. Decomposition reaction D. Addition of barium chloride solution to aluminium sulphate solution | 4. Displacement reaction Code: A-B-C-D
Add
Playbook: Chemical Reactions
A
3-4-2-1
B
4-2-1-3
C
3-2-4-1
D
4-1-2-3
Tap an option to check your answer.
Show solution
[Q62 · Sep · 2023]
Report
Q3303
#3303
Chemistry → Chemical Reactions → Physical vs Chemical Changes
·
Easy
Which one of the following processes involves chemical reaction?
Add
Playbook: Chemical Reactions
A
Evaporation of petrol
B
Dissolution of salt in water
C
Storing of oxygen gas under pressure in a gas cylinder
D
Burning of magnesium ribbon in air
Tap an option to check your answer.
Show solution
[Q63 · Sep · 2023]
Report
Q3304
#3304
Chemistry → Metals and Non-Metals → Reactivity Series and Reactions with Water
·
Easy
Which one of the following metals does NOT react with cold water to liberate hydrogen gas?
Add
Playbook: Metals and Non-Metals
A
Potassium
B
Iron
C
Calcium
D
Sodium
Tap an option to check your answer.
Show solution
[Q64 · Sep · 2023]
Report
Q3305
#3305
Chemistry → Chemical Reactions → Thermal and Photochemical Decomposition
·
Moderate
Consider the following reaction :
2
HgO
→
Δ
2
Hg
+
O
2
2\text{HgO} \xrightarrow{\Delta} 2\text{Hg} + \text{O}_2
2
HgO
Δ
2
Hg
+
O
2
The respective state of HgO, Hg and
O
2
\text{O}_2
O
2
in the above reaction is
Add
Playbook: Chemical Reactions
A
Liquid, solid, gas
B
Solid, solid, gas
C
Liquid, solid, liquid
D
Solid, liquid, gas
Tap an option to check your answer.
Show solution
[Q65 · Sep · 2023]
Report
Q3306
#3306
Biology → Reproduction → Sexual Reproduction — Genetic Principles
·
Easy
The two important features of sexual reproduction in higher organisms that create genetic diversity in offspring are
Add
Playbook: Reproduction
A
Mitosis and fertilization
B
Meiosis and fertilization
C
Mitosis and binary fission
D
Meiosis and conjugation
Tap an option to check your answer.
Show solution
[Q66 · Sep · 2023]
Report
Q3307
#3307
Biology → Cell Biology → Prokaryotic vs Eukaryotic Cells
·
Easy
Eukaryotic cells are much more complex as compared to prokaryotes. Which one of the following structures is exclusively present in a eukaryotic cell?
Add
Playbook: Cell Biology
A
Cell wall
B
Plasma membrane
C
Nucleic acid
D
Mitochondria
Tap an option to check your answer.
Show solution
[Q67 · Sep · 2023]
Report
Q3308
#3308
Biology → Microbiology and Disease → Pathogens and Diseases
·
Moderate
An important cause of tooth decay by the bacterium
e
x
t
i
t
S
t
r
e
p
t
o
c
o
c
c
u
s
m
u
t
a
n
s
extit{Streptococcus mutans}
e
x
t
i
t
S
t
r
e
pt
ococc
u
s
m
u
t
an
s
is because of their ability to attach to teeth surface by producing slime layer from
Add
Playbook: Microbiology and Disease
A
Sugar
B
Alcohol
C
Saliva
D
Teichoic acid
Tap an option to check your answer.
Show solution
[Q68 · Sep · 2023]
Report
Q3309
#3309
Biology → Reproduction → Angiosperm Reproduction — Pollination and Fertilization
·
Moderate
In angiosperms, pollen grain germinates to produce two male gametes. Which one of the following functions is carried out by these gametes?
Add
Playbook: Reproduction
A
Both the gametes fuse with a single egg cell
B
Both the gametes fuse with two different egg cells
C
One gamete fuses with the egg cell and the other one eventually degenerate
D
One gamete fuses with the egg cell and the other one fuses with a diploid secondary nucleus
Tap an option to check your answer.
Show solution
[Q69 · Sep · 2023]
Report
Q3310
#3310
Biology → Reproduction → Sexual Reproduction — Genetic Principles
·
Hard
In a sexually reproducing organism, which one of the following statements is appropriate both for the parent and offspring?
Add
Playbook: Reproduction
A
Chromosome number increases but DNA content remains constant
B
Both chromosome number and DNA content remains constant
C
Chromosome number decreases but DNA content remains constant
D
Both chromosome number and DNA content decreases
Tap an option to check your answer.
Show solution
[Q70 · Sep · 2023]
Report
Q3311
#3311
Biology → Ecology and Environment → Ecosystems, Biomes and Ecological Interactions
·
Easy
Relationship between a flower and honey-bee will help the flower for/in
Add
Playbook: Ecology and Environment
A
Faster development
B
Pollination
C
Quick germination of pollen
D
Increase in size
Tap an option to check your answer.
Show solution
[Q71 · Sep · 2023]
Report
Q3312
#3312
History → Ancient India → Mahajanapadas, Magadha and Mauryan Empire
·
Moderate
Which one of the following was NOT a way in which kings in ancient India attempted to claim a higher status?
Add
Playbook: Ancient India
A
Identifying with a variety of deities
B
Assuming pompous titles
C
Imposing high taxes
D
Conquests and annexation of territories
Tap an option to check your answer.
Show solution
[Q72 · Sep · 2023]
Report
Q3313
#3313
History → Medieval India → Bhakti and Sufi Movements
·
Moderate
Which one of the following statements about the Bhakti movement is NOT correct?
Add
Playbook: Medieval India
A
The Bhakti movement avoided traditions that promoted diversity
B
In northern India, the Bhakti movement revolved around the worship of Rama and Krishna
C
The Bhakti movement relied on the devotion of God, both with and without attributes
D
While Tulsidas represented the tradition of devotion with attributes, Sant Kabir followed the path of devotion without attributes
Tap an option to check your answer.
Show solution
[Q73 · Sep · 2023]
Report
Q3314
#3314
History → World History → Enlightenment and Political Revolutions
·
Easy
The 'Reign of Terror' in revolutionary France referred to
Add
Playbook: World History
A
Bands of revolutionaries moving around to terrorise people who did not participate in the revolution
B
The royal forces punishing people who participated in the revolution
C
Trial and beheading persons considered enemies of the republic by the revolutionary tribunal
D
The general atmosphere of insecurity perceived by people after the beheading of the king
Tap an option to check your answer.
Show solution
[Q74 · Sep · 2023]
Report
Q3315
#3315
History → World History → 20th Century — World Wars, Modernity and Global Institutions
·
Hard
In which one of the following ways did the First World War Not impact Europe?
Add
Playbook: World History
A
From a continent of creditors it turned into a continent of debtors
B
Soldiers came to be placed higher in social status than civilians
C
Popular support decreased for conservative dictatorship which had come into being recently
D
National honour occupied centre stage in the public sphere
Tap an option to check your answer.
Show solution
[Q75 · Sep · 2023]
Report
Q3316
#3316
History → Modern India → Freedom Movement — INC, Gandhi and Independence
·
Easy
"...the immediate ending of British rule in India is an urgent necessity..." was a resolution of
Add
Playbook: Modern India
A
Non Co-operation Movement
B
Quit India Movement
C
Individual Movement
D
Civil Disobedience Movement
Tap an option to check your answer.
Show solution
[Q76 · Sep · 2023]
Report
Q3317
#3317
Geography → Indian Geography — Economy, Resources and Transport → Minerals and Mining
·
Moderate
Which one among the following pairs of mine and mineral is NOT correctly matched?
Add
Playbook: Indian Geography — Economy, Resources and Transport
A
Bailadila : Iron Ore
B
Zawar : Zinc
C
Ghatsila : Copper
D
Kudremukh : Bauxite
Tap an option to check your answer.
Show solution
[Q77 · Sep · 2023]
Report
Q3318
#3318
Geography → Climatology, Atmosphere and Weather → Atmospheric Pressure and Winds
·
Easy
Which one of the following is the usual unit of measurement for Air Pressure used in India?
Add
Playbook: Climatology, Atmosphere and Weather
A
Centimeter
B
Millibar
C
Milligram
D
Milliliter
Tap an option to check your answer.
Show solution
[Q78 · Sep · 2023]
Report
Q3319
#3319
Geography → Earth's Structure, Landforms and Geological Time → Rocks, Minerals and Geological Time
·
Moderate
Which one of the following is the oldest era in Geological History determining the age of various rock types?
Add
Playbook: Earth's Structure, Landforms and Geological Time
A
Precambrian
B
Mesozoic
C
Cenozoic
D
Paleozoic
Tap an option to check your answer.
Show solution
[Q79 · Sep · 2023]
Report
Q3320
#3320
Geography → Earth in Space, Maps and Coordinates → Latitude, Longitude and Geographical Grid
·
Easy
A geographical grid has: 1. Lines that run east to west around the globe to mark latitude 2. Lines that run north to south from north pole to south pole indicate longitude Which of the statements given above is/are correct?
Add
Playbook: Earth in Space, Maps and Coordinates
A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
Tap an option to check your answer.
Show solution
[Q80 · Sep · 2023]
Report
Q3321
#3321
Geography → Climatology, Atmosphere and Weather → Atmospheric Layers, Composition and Aurora
·
Easy
In which one of the following layers of the atmosphere all weather phenomena occur?
Add
Playbook: Climatology, Atmosphere and Weather
A
Mesosphere
B
Troposphere
C
Thermosphere
D
Stratosphere
Tap an option to check your answer.
Show solution
[Q81 · Sep · 2023]
Report
Q3322
#3322
Geography → Indian Geography — Physical Features → Indian Rivers, Lakes and Water Bodies
·
Easy
In which one of the following states 'Roopkund' lake is located?
Add
Playbook: Indian Geography — Physical Features
A
Kerala
B
Manipur
C
Himachal Pradesh
D
Uttarakhand
Tap an option to check your answer.
Show solution
[Q82 · Sep · 2023]
Report
Q3323
#3323
Physics → Kinematics and Motion → Equations of Motion and Graphs
·
Easy
Ram records the odometer readings of his car for the distance covered from 2000 km at the start of his journey and 2400 km at the end of the journey after 8 hours. What is the average speed of the car?
Add
Playbook: Kinematics and Motion
A
50 km/h
B
60 km/h
C
70 km/h
D
80 km/h
Tap an option to check your answer.
Show solution
[Q83 · Sep · 2023]
Report
Q3324
#3324
Physics → Electricity and Magnetism → Electrical Devices
·
Moderate
Ms. Rani decides to convert her AC generator into a DC generator. Which one of the following she would need to use?
Add
Playbook: Electricity and Magnetism
A
A split-ring type commutator
B
Slip rings and brushes
C
A stronger magnetic field
D
A rectangular wire loop
Tap an option to check your answer.
Show solution
[Q84 · Sep · 2023]
Report
Q3325
#3325
Physics → Light and Optics → Human Eye and Optical Instruments
·
Moderate
Ramesh cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
Add
Playbook: Light and Optics
A
+ 0·5 D
B
− 0·5 D
C
+ 0·2 D
D
− 0·2 D
Tap an option to check your answer.
Show solution
[Q85 · Sep · 2023]
Report
Prev
Page 133 of 195
Next
1
…
132
133
134
…
195
PYQ Vault
Bank
Guides
Notes
NDA
Sign in