Explore topic-wise MCQs in Joint Entrance Exam - Main (JEE Main).

This section includes 674 Mcqs, each offering curated multiple-choice questions to sharpen your Joint Entrance Exam - Main (JEE Main) knowledge and support exam preparation. Choose a topic below to get started.

101.

Q: Which of the following metals forms an amalgam with other metals  ?

A. Mercury
B. Zinc
C. Tin
D. Lead
Answer» B. Zinc
102.

Q: Which of the following memories needs refresh ?

A. DRAM
B. ROM
C. SRAM
D. All of the above
Answer» B. ROM
103.

Q: Which of the following is true about veins?

A. Veins carry blood away from the heart, while arteries carry blood to the heart.
B. Veins are more muscular than arteries.
C. Veins have valves; arteries do not.
D. Veins have a smaller diameter lumen than arteries.
Answer» D. Veins have a smaller diameter lumen than arteries.
104.

Q: Which of the following is true about blood plasma?

A. The main protein component is hemoglobin.
B. It is a faint yellow fluid.
C. It is the same as serum but without the clotting proteins.
D. It is about 90% water.
Answer» E.
105.

Q: Which of the following is tropical grassland?

A. Savannah
B. Pampas
C. Prairies
D. Taiga
Answer» B. Pampas
106.

Q: Which of the following is the world's most poisonous snake called Hydrophis ?

A. Adder
B. Boa
C. Cobra
D. Sea Snake
Answer» E.
107.

Q: Which of the following is the strongest acid?

A. ClCH2COOH
B. BrCH2COOH
C. FCH2COOH
D. ICH2COOH
Answer» D. ICH2COOH
108.

Q: Which of the following is the most stable carbocation?

A. 4
B. 3
C. 2
D. 1
Answer» D. 1
109.

Q: Which of the following is the lightest metal?

A. Lithium
B. Silver
C. Mercury
D. Lead
Answer» B. Silver
110.

Q: Which of the following is the longest river in India?

A. Godavari
B. Ganga
C. Yamuna
D. Brahmaputra
Answer» C. Yamuna
111.

Q: Which of the following is the fastest communication channel?

A. Microwave
B. Optical fiber
C. Radio wave
D. All are operating at nearly the same propagation speed
Answer» B. Optical fiber
112.

Q: Which of the following is not transferred by alveoli?

A. Gases
B. Oxygen
C. Blood
D. Carbondioxide
Answer» D. Carbondioxide
113.

Q: Which of the following is not an Output device?

A. Scanner
B. Moniter
C. Printer
D. Speakers
Answer» B. Moniter
114.

Q: Which of the following is not an enzyme?

A. Oxytocin
B. Trypsin
C. Pepsin
D. Ptyalin
Answer» B. Trypsin
115.

Q: Which of the following is not an element of culture?

A. Customs and traditions
B. Religion
C. Human Beleifs
D. Forms of government
Answer» D. Forms of government
116.

Q: Which of the following is not an allotrope of carbon?

A. Diamond
B. Graphene
C. Ethylene
D. Buckminsterfullerene
Answer» D. Buckminsterfullerene
117.

Q: Which of the following is NOT a Union Territory?

A. Daman and Diu
B. Puducherry
C. Shillong
D. Lakshadweep
Answer» D. Lakshadweep
118.

Q: Which of the following is not a sedimentary structure?

A. graded bedding
B. rock color
C. ripple marks
D. mudcracks
Answer» C. ripple marks
119.

Q: Which of the following is not a polymer?

A. DNA
B. Glucose
C. Starch
D. Cellulose
Answer» C. Starch
120.

Q: Which of the following is not a monosaccharide?

A. Fructose
B. Glucose
C. Galactose
D. Sucrose
Answer» E.
121.

Q: Which of the following is not a Jovian planet?

A. Jupiter
B. Earth
C. Saturn
D. Neptune
Answer» C. Saturn
122.

Q: Which of the following is not a function of saliva?

A. contains fluoride to harden the tooth enamel
B. moistens food and helps stick it together to make it easier to swallow
C. begins the chemical breakdown of starches
D. helps clean the mouth
Answer» B. moistens food and helps stick it together to make it easier to swallow
123.

Q: Which of the following is not a function of proteins?

A. Build tissues such as bone and muscle
B. Help to fight disease
C. Nail formation
D. Store and transmit Heredity
Answer» E.
124.

Q: Which of the following is not a fossil fuel?

A. Natural Gas
B. Uranium
C. Coal
D. Petroleum
Answer» C. Coal
125.

Q: Which of the following is not a Fixed Cost?

A. Insurance
B. Salaries
C. Depreciation
D. Direct Materials
Answer» E.
126.

Q: Which of the following is not a correct variable type?

A. real
B. char
C. float
D. double
Answer» B. char
127.

Q: Which of the following is an example of polygenic inheritance?

A. Skin pigmentation in humans
B. Huntingtonʹs disease in humans
C. White and purple flower color in peas
D. The ABO blood groups in humans
Answer» B. Huntingtonʹs disease in humans
128.

Q: Which of the following is an example of market failure?

A. Prices do not reflect the full social cost of production
B. A firm goes out of business because it cannot find a market for its products
C. Prices rise so that the consumers cannot afford the products they want to buy
D. Producer surplus is maximized
Answer» B. A firm goes out of business because it cannot find a market for its products
129.

Q: Which of the following is an example of chemical weathering?

A. Oxidation
B. Acid rains
C. Carbonation
D. All the above
Answer» E.
130.

Q: Which of the following is an Autoimmune disease?

A. Systematic lupus erythematosus
B. Acute anaphylaxis
C. Farmer's lung
D. A heart attack
Answer» B. Acute anaphylaxis
131.

Q: Which of the following is an abnormal constituent of urine?

A. Creatinine
B. Uric acid
C. Glucose
D. Urea
Answer» D. Urea
132.

Q: Which of the following is a true statement about Intranet and Internet ?

A. Encryption is necessary
B. They use similar protocol
C. Speed is slow
D. They use the same protocol
Answer» E.
133.

Q: Which of the following is a renewable source of energy

A. Natural gas
B. Coal
C. Wind
D. Oil
Answer» D. Oil
134.

Q: Which of the following is a property of sodium hydroxide?

A. It is insoluble in ether and other Non-polar solvents
B. It is slowly soluble in water
C. It has an odor of rotten egg smell
D. All the above
Answer» B. It is slowly soluble in water
135.

Q: Which of the following is a polymer?

A. Glycerol
B. Amino acid
C. Nucleic acid
D. Fatty acid
Answer» D. Fatty acid
136.

Q: Which of the following is a non metal that remains liquid at room temperature  ?

A. Chlorine
B. Phosphorous
C. Bromine
D. Helium
Answer» D. Helium
137.

Q: Which of the following is a microeconomic statement?

A. The price of personal computers declined last year.
B. Unemployment was 6.8 percent of the labor force last year.
C. The real domestic output increased by 2.5 percent last year.
D. The general price level increased by 4 percent last year.
Answer» B. Unemployment was 6.8 percent of the labor force last year.
138.

Q: Which of the following is a micro nutrient?

A. Mg
B. Cl
C. P
D. Ca
Answer» C. P
139.

Q: Which of the following is a healthy blood pressure level?

A. 120/80
B. 140/90
C. 135/75
D. 130/70
Answer» B. 140/90
140.

Q: Which of the following is a characteristic of the Ascomycota?

A. Sac formation
B. Zygospore formation
C. Basidium formation
D. All of the above
Answer» B. Zygospore formation
141.

Q: Which of the following is a characteristic of all minerals?

A. Crystalline solids
B. Minerals are inorganic
C. All minerals are formed in a natural process
D. All the above
Answer» E.
142.

Q: Which of the following is / are fund managers for National Pension System (NPS) in 2017 ?

A. Axis provident fund
B. Yes bank pension fund
C. ICICI prudential pension
D. Punjab National provident fund
Answer» D. Punjab National provident fund
143.

Q: Which of the following elements is a metal?

A. Se
B. I
C. Zn
D. S
Answer» D. S
144.

Q: Which of the following elements has the lowest electronegativity

A. Bromine
B. Fluorine
C. Carbon
D. Lithium
Answer» E.
145.

Q: Which of the following elements has the highest electronegativity?

A. Chlorine
B. Bromine
C. Fluorine
D. Helium
Answer» D. Helium
146.

Q: Which of the following does not occur during Mitosis?

A. spindle formation
B. condensation of the chromosomes
C. breakdown of the nuclear membrane
D. replication of the DNA
Answer» E.
147.

Q: Which of the following describes the Urban League?

A. focused on helping poor African American workers
B. helped middle-class African Americans struggle for political and social justice
C. formed in response to race riots in 1908
D. led by Jane Addams and Ida B. Wells
Answer» B. helped middle-class African Americans struggle for political and social justice
148.

Q: Which of the following describes loyalists?

A. They thought Patriots were too radical
B. They decided to fight against the British
C. They wanted to return to Britain
D. They supported British taxation
Answer» B. They decided to fight against the British
149.

Q: Which of the following contributed to the failure of prohibition?

A. it was not imposed strictly on immigrants
B. many americans didnt consider drinking to be a crime
C. it adversely affected american productivity
D. organized crime controlled illegal alcohol production
Answer» E.
150.

Q: Which of the following chemical compounds has the highest boiling point?

A. Dimethyl ether (CH3OCH3)
B. Methanol (CH3OH)
C. Methane (CH4)
D. None
Answer» C. Methane (CH4)