Daily Updates Mock Test 63
MOCK TEST 63 SYLLABUS : CHEMISTRY TIME : 20 MINUTES FULL MARKS : 50*5 = 250 EACH QUESTION CARRIES 5 MARKS , -VE MARKING = - 1 / WRONG ANSWER আজকের মোক টেস্ট নেওয়া হবে রাত 9. 30 PM থেকে , এই মোক টেস্ট দেওয়া যাবে কাল সকাল 11 টা পর্যন্ত OUR FACEBOOK GROUP : DAILY UPDATES CLICK HERE TO JOIN OUR FACEBOOK PAGE : STUDY MATERIALS FOR ALL CLICK HERE TO FOLLOW OUR TELEGRAM CHANNEL LINK : STUDY MATERIALS FOR ALL CLICK HERE TO FOLLOW PSC GUIDE BOOK FOR (MVI,WORKS ACNTNT,FOOD SI) CLICK HERE TO DOWNLOAD
- 1.The most abundant rare gas in the atmosphere is
- A.
He
- B.
Ne
- C.
Ar
- D.
Xe
- 2.The Latin word formica means ant. The name formic acid is derived from this Latin word because
- A.
This acid, in ancient times, was used to eliminate ant-hills
- B.
This corrosive acid is secreted by ants to drive away their enemies
- C.
This acid was first obtained by the distillation of ants
- D.
Ants are attracted by the odour of this acid
- 3.The ore which is found in abundance in India is
- A.
Monazite
- B.
Fluorspar
- C.
Bauxite
- D.
Magnetite
- 4.The inherited traits of an organism are controlled by
- A.
RNA molecules
- B.
Nucleotides
- C.
DNA molecules
- D.
Enzymes
- 5.The heat energy produced when the human body metabolises 1 gram of fat is
- A.
30 KJ
- B.
1 KJ
- C.
39 KJ
- D.
29 KJ
- 6.What are the number of moles of CO2 which contains 16 g of oxygen?
- A.
0.5 mole
- B.
0.2 mole
- C.
0.4 mole
- D.
0.25 mole
- 7.The main use of salt in the diet is to
- A.
Make the taste of food better
- B.
Produce in small amounts the hydrochloric acid required for the digestion of food
- C.
Ease the process of cooking
- D.
Increase the solubility of food particles in water
- 8.The monomer of polythene is
- A.
Vinyl chloride
- B.
Ethylene
- C.
Ethyl alcohol
- D.
None of the above
- 9.The luster of a metal is due to
- A.
its high density
- B.
Its high polishing
- C.
Its chemical inertness
- D.
Presence of free electrons
- 10.The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is
- A.
1.568 x 103
- B.
6.023 x 1019
- C.
4.84 x 1017
- D.
6.023 x 1023
- 11.The most malleable metal is
- A.
Platinum
- B.
Silver
- C.
Iron
- D.
Gold
- 12.The oil used in the froth floatation process is
- A.
Coconut oil
- B.
Olive oil
- C.
Kerosene oil
- D.
Pine oil
- 13.The number of waves in n x 10th Bohr's orbit are
- A.
N2
- B.
N
- C.
N-2
- D.
N3
- 14.The mass of one Avogadro number of helium atom is
- A.
1.00 gram
- B.
4.00 gram
- C.
8.00 gram
- D.
4 x 6.02 x 1023 gram
- 15.The items amenable to detection by soft x-rays are
- A.
Contrabands
- B.
Lead in bullets
- C.
Narcotics
- D.
Genuine coins from counterfeit coins
- 16.The material which can be deformed permanently by heat and pressure is called a
- A.
Thermoplastic
- B.
Thermoset
- C.
Chemical compound
- D.
Polymer
- 17.The mass number of a nucleus is
- A.
Always less than its atomic number
- B.
The sum of the number of protons and neutrons present in the nucleus
- C.
Always more than the atomic weight
- D.
A fraction
- 18.The inexpensive and commonly used variety of glass is called soda glass. It is called so because
- A.
Was used initially for making bottles of soda(carbonated drink)
- B.
Is made using soda(sodium carbonate)
- C.
Was initially used for storing sodium carbonate
- D.
Is made using soda lime
- 19.The gas used in the manufacture of vanaspati from vegetable oil is
- A.
Hydrogen
- B.
Oxygen
- C.
Nitrogen
- D.
Carbon dioxide
- 20.The ionic radii of N3-, O2-, F- and Na+ follows the order
- A.
N3- > O2- > F- > Na+
- B.
N3- > Na+ > O2- > F-
- C.
Na+ > O2- > N3- > F-
- D.
O2- > F- > Na+ > N3-
- 21.The graphite rods in the nuclear reactor
- A.
React with U to release energy
- B.
Produce neutrons
- C.
Undergo combustion which triggers the nuclear fission
- D.
Convert fast moving neutrons into thermal neutrons
- 22.The first metal used by man was
- A.
Iron
- B.
Copper
- C.
Gold
- D.
Bronze
- 23.The hydronium ion is
- A.
H+
- B.
HO -
- C.
H2+
- D.
H3O+
- 24.The most electropositive elements among the following is
- A.
Na
- B.
Ca
- C.
K
- D.
Cs
- 25.The method that cannot be used for removing permanent hardness of water is
- A.
Adding sodium carbonate
- B.
Distillation
- C.
Adding caustic soda
- D.
Boiling
Questions: 20 | Attempts: 8814 | Last updated: May 29, 2013
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