chemistry Mcqs
1251. The following alcohol does not undergo oxidation is _____________?
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A. 0 alcohol

B. 1 alcohol

C. 3 alcohol

D. 2 alcohol

1252. Chemistry is given from language ?
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A. Arabic

B. Latin

C. Greek

D. None of these

1253. Bosch Process involves _______?
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A. Crackling

B. Reduction

C. Isomerization

D. Oxidation
1254. A scale which used to measure the Hydrogen Ion concentration in a solution is known as__________?
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A. Thermometer

B. Viscometer

C. PH Scale

D. Stagmometer

1255. Coal gas is made up of mostly ________ & _________?
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A. Hydrogen & Methane

B. Hydrogen & Carbon dioxide

C. Hydrogen & Water

D. Carbonmonoxdide & water

1256. The weight of a metal of equivalent of 12 which will give 0.475g of its chloride is_______?
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A. 0.18g

B. 0.12g

C. 0.24g

D. 0.16g

1257. In water molecule, Hydrogen & water are held together by ______ bond.
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A. Ionic

B. Covalent

C. Hydrogen

D. Dating

1258. Urea as a fertilizer contains:____________?
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A. 53% N

B. 46% N

C. 73% N

D. 57% N

1259. The Electronegativity of Hydrogen is _____.
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A. 1.8

B. 3.1

C. 2.8

D. 2.2
1260. The product On the oxidation of 2Alcohol is ________?
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A. Ketone

B. Aldehyde

C. Ester

D. Carboxylic acid

1261. Effective volume is usually taken for ____________ ?
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A. 1 mole of gas

B. 3moles of gas

C. 5 moles of gas

D. 2 moles of gas

1262. What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ?
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A. Deuterium dating

B. Radium dating

C. Carbon dating

D. Uranium dating

1263. The whole universe is made up of almost _______of Hydrogen?
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A. 50%

B. 60%

C. 80%

D. 70%
1264. Water Gas is a mixture of two gases Hydrogen & Carbon monoxide, while separating Hydrogen gas by liquification process which one is liquefied first__?
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A. Hydrogen Gas

B. Carbon Monoxide Gas

C. Both at same time

D. None of them
1265. In Dry cell, cathode is made up of_______?
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A. ZnCl

B. MnO(Pyrolusite)

C. Zinc

D. Carbon (Graphite)
1266. Nitrate (NO3) ions are obtained by the process of __________?
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A. Denitrification

B. Nitrification

C. None of these

D. Fermentation

1267. In water, Hydrogen is present ________by mass.
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A. 15.15%

B. 22%

C. 11.11%

D. 31.13%

1268. Hydrogen Gas can be prepared by thermal decomposition of Methane in the absence of Air at above____
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A. 500?C

B. 900?C

C. 700?C

D. 1300?C

1269. What is the mass of one mole of Iodine?
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A. 53g

B. 127g

C. 254g

D. 74g

1270. Calculate % of N in KNO3__________?
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A. 18.56%

B. 14.34%

C. None of these

D. 13.86%
1271. The radiations with negative charge are________.
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A. Gamma radiations

B. Alpha radiations

C. positron

D. Beta radiations
1272. Optic fibres are used in :
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A. Ultrasound scans

B. CAT scans

C. X-ray photos

D. Endoscopy
1273. Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?
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A. 75.5pm

B. 75.4pm

C. 75.3pm

D. 75.2pm

1274. A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?
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A. Negative particle

B. Alpha particle

C. Beta particle

D. Gamma particle

1275. Alpha (?) particles are helium (He) nucleus with a charge of __________ ?
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A. 2e

B. 3e

C. e

D. 4e

1276. Air is a/an _________?
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A. Compound

B. Element

C. Electrolyte

D. Mixture
1277. Which of the following is non spontaneous cell?
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A. Not

B. Galvanic cell

C. Electrolytic cell

D. Daniel cell

1278. d-block elements are also called as __________?
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A. Inner Transition

B. Outer Transition

C. Alkali Metals

D. Both B & C

1279. Octane rating of Gasoline can be increased by __________?
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A. Reforming

B. Refining

C. Cracking

D. None of These

1280. Treatment of sucrose with conc. HNO3 gives__________?
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A. Glucose+ fructose

B. Nitrosucrose

C. Oxalic acid

D. Laevulinic acid

1281. Black foot disease is caused by the pollution of groundwater as a consequence of increased seepage of:__________?
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A. Arsenic

B. Mercury

C. Fluorides

D. Nitrates

1282. Which one of the following radiation has the longer wavelength?
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A. gamma rays

B. x-ray

C. infra red

D. ultra violet

E. visible

1283. Atoms of all the elements always contain in nucleus:
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A. Neutron and electron

B. Neutron

C. Proton

D. Proton and neutron

1284. If a compound contains 24 gram of carbon 2 gram of hydrogen and 64 gram of oxygen then its empirical formula will be________?
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A. CHO2

B. CH2

C. C2H2O4

D. CH2O

1285. Which molecule have stronger London dispersion forces?
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A. Water

B. Hydrochloric acid

C. Hydrogen gas

D. Bromine

1286. I3( Tri-iodine) has shape_________?
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A. Trigonal bipyramidal

B. Linear

C. Square bipyramidal

D. Both A and C

1287. Which of the following is more acidic in nature?
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A. Cresol

B. Benzene

C. Phenol

D. p-nitrobenzene
1288. The Chemical Formula of Sand is___________?
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A. SiO2

B. Al2O3

C. Si2O3

D. Sr2O

1289. Which gas is used for artificial ripening of green fruit ?
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A. Acetylene

B. Carbon dioxide

C. Ethane

D. Ethylene
1290. __________ is one of the allotropic modifications of carbon.
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A. Diamond

B. Iodine

C. Silicon

D. Graphite

1291. The amount of Benzene is obtained from Coal Tar on its Fractional Distillation?
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A. 1-4Kg

B. 1-3Kg

C. 1-2Kg

D. 1-5Kg

1292. During electrolysis of Water, the product obtained at cathode is ___________?
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A. Only Water

B. Oxygen Gas &Water

C. ir khan Hullio

D. Only oxygen

E. Hydrogen Gas &Water
1293. BeCl2 has the hybrid orbitaks of type_______?
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A. dsp2

B. Sp3

C. Sp2

D. Sp
1294. Water molecule is________?
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A. Pyramidal

B. Triangular planer

C. V-shaped

D. Angular

1295. Elements which emit natural radioactivity are known as __________ ?
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A. Nuclear elements

B. Radioactive elements

C. Radio elements

D. Active elements

1296. Why does Ethyl Alcohol show high boiling point then Acetone?
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A. Due to Hydrogen bonding

B. Due to its Acidic nature

C. Due to high molecular weight

D. Due to its Low molecular weight

1297. The chemical symbol for silver is __________?
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A. Au

B. At

C. Sv

D. Ag
1298. Ethylene diammine is ligand________?
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A. Bi dentate

B. tri dentate

C. Poly dentate

D. mono dentate

1299. Which one of the following serve as aquatic solar fuel cell:
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A. Virus

B. Fungi

C. Bacteria

D. Algae
1300. Example of globular proteins is __________ ?
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A. Enzymes

B. Primary protein

C. Peptide

D. Secondary proteins