1401 Silver nitrate is used in laboratory as a reagent for the detection and determination of____________? Chemistry Medium Full question → A Alkali metals B Aldehydes C Halides D Ketones
1402 Which of following is known as Blue Vitriol or Blue Stone? Chemistry Medium Full question → A AgNO3 B CuSO4.5H2O C K2Cr2O7 D K2CrO4
1403 What is the formula of Copper Sulfate? Chemistry Medium Full question → A CuSO3.4H2O B CuSO4.4H2O C CuSO3.5H2O D CuSO4.5H2O
1404 Which of the following produces black spots when it comes in contact with organic substances such as skin and cellulose? Chemistry Medium Full question → A CuSO4 B AgNO3 C K2MnO4 D CH3COOH
1405 Silver nitrate is also known as____________? Chemistry Medium Full question → A Blue Stone B Blue Vitriol C Lunar Caustic D Both A & B
1406 What is the formula of Silver nitrate? Chemistry Medium Full question → A AgNO B AgNO2 C AgNO3 D AgNO4
1407 Which of the following has lowest lattice energy? Chemistry Medium Full question → A LiF B NaCl C KBr D CsI
1408 Which of the following is used in photography? Chemistry Medium Full question → A NaHSO3 B Na2S2O3 C Na2S D Na2SO3
1409 Lead battery is secondary battery the paste used in it is______________? Chemistry Medium Full question → A Magnese dioxide B Zinc chloride C Ammonium chloride D AOT
1410 Solvent used in separation of biomolecules is _______________? Chemistry Medium Full question → A Acetone B Trichloroacetic acid C Ether D Alcohol
1411 Strong Nucleophile in polar aprotic solvent? Chemistry Medium Full question → A Flouride ion B Bromide ion C Chloride ion D Iodide ion
1412 Product of Nucleophilic Substitution Uni Molecular reaction is in case of chiral substrate? Chemistry Medium Full question → A Inversion B Retention C Recemic Mixture D Stereospecific
1413 What will be the PH of 0.01M ammonium chloride solution containing 10 mol per liter of ammonium chloride (pkb=4.76)? Chemistry Medium Full question → A 5.24 B 6.24 C 7.24 D 8.24
1414 Alum is used by dyers of cloth: Chemistry Medium Full question → A As water purifier B As mordant C fire proofing fabrics D Softening of hard water
1415 The most useful dye for those fabric which can form hydrogen bonds is:_____________? Chemistry Medium Full question → A Mordent dye B Vat dye C Acid dye D Direct dye
1416 The phosphate present in sewage water which cause eutrophication Can be removed by adding: Chemistry Medium Full question → A Alum B Chlorine C Lime D permangnate
1417 which of the following pair is not distinguished by passing H2S? Chemistry Medium Full question → A Hg, Pb B Zn, Mn C As, CD D Cd , Pb
1418 Ozone is formed in the upper layer of the atmosphere from oxygen by action of:____________? Chemistry Medium Full question → A Free radicals B Cosmic rays C Nitrogen oxides D UV -rays
1419 Surface water contains:_____________? Chemistry Medium Full question → A only salt B Organic matter C Salt & Organic matter D Suspended impurity
1420 Biodegradable pollutant is:_____________? Chemistry Medium Full question → A DDT B mercury salt C Domestic waste D Aluminum foil