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WorksheetsApplied Chemistry NTSE
Total questions: 28
Worksheet time: 16mins
NanoChemistry
1. Full name of SEM
Scanning Enthalpy Machine
Scamming Electron Microscope
Scanning Electron Metals
Scanning Electron Microscope
By which of the following we can study nanoparticles?
SEM
TEM
AFM
SFM
_______ nanoparticles can be used as active catalysts .
Non-Metallic
Metallic
Metalloid
Electron
Nanoparticles are unstable when they react with _____ and is a ________ reaction.
oxygen , endothermic
carbon , endothermic
oxygen , exothermic
carbon , exothermic
which of the following are the properties of Nanoparticles?
(Advanced)
Large Surface Area
Spatial Confinement
Reduced Imperfection
Low surface energy
PHARMACEUTICAL CHEM
Which is the safest anaesthetic agent?
NO2
N2O
CHCl3
None of these
Which acts both as an antipyretic and analgesic?
Novalgin
Aspirin
Phenacetin
Nicotine
which of the following is mostly used to treat fever ? and in which drug class is it?
Antibiotics , NSAIDS
Antipyretics , IUPAC
Antipyretics , NSAIDS
Analgesics, NSAIDS
Malaria is a vector-borne disease which causes physical weakness in _____ and also causes _______.
pancreas , anaemia
liver , anaemia
stomach , anaemia
small intestine , anaemia
Which is the natural antimalarial obtained from Cinchona Bark ?
pyrimethamine
quinine
chloroquine
none of these
The chemicals which inhibits growth or metabolism of disease-causing microorganism
Antiseptics
Antipyretics
Antacids
Antibiotics
ELECTROCHEM
The conversion of chemical to electrical energy takes place in _______.
Electrolytic cell
Electrostatic cell
Electrochemical cell
Electrosytical cell
True statement for redox reaction in cell?
Oxidation --- Cathode
Oxidation --- Anode
Reduction --- Cathode
Reduction --- Anode
The electrolytes of half-cells are connected through a tube (salt bridge) containing _______. (Advance)
saturated sugar solution
unsaturated salt solution
saturated salt solution
unsaturated sugar solution
In Electrolytic cells, when electricity is passed to the electrolyte, it dissociates into its constituent ion . this is called ____.
Electrophoresis
Electrosis
None of the below, above
Electrolysis
Detection of alchol in drunken drivers is possible through electrochemical ____________.
oxidation of ethanol
redox reaction of methanol
redox reaction of ethanol
reduction of methanol
RADIOCHEM
Diagnosis of Anaemia ?
Cobalt - 60
Iron - 59
Iodine - 131
Sodium - 24
Detection and diagnosis of brain tumor ?
Iodine - 131
Sodium - 24
Hydrogen - 3
Cobalt - 60
Uranium in ground can decompose into ______.
Xenon
Promethium
Plutonium
Radon
Treatment used for cancer ?
Gold - 198
Iodine - 131
Phosphorus - 32
Cobalt - 60
DYE Chem
Mordant Dyes have a poor affinity for _____.
silk fabrics
cotton fabrics
synthetic fabrics
wool fabric
Which of the following are VAT dyes not used for ?
Silk
Wool
Cotton
All of the above
organic compounds used as colourants ?
Dyes
Mordant
Aromatics
None of the above
Which of the following are used as mordants?
AL
FE
Cr
Mg
NPK ?
Nitrogen , Phosphorus , Preasium
Nickel, Promethium , Krypton
Nihonium , Plutonium , Kallium
Nitrogen , Phosphorus , Potassium
FORENSIC
Occult Fingerprints are sometimes made visible by ?
Perspirin
Chloromycin
Ninhydrin
Presothium
_______ fumes from glue are used with fluroscent dyesto make fingerprints visible?
Cyanoacrylate Ester
Propyl Halide
Diethyl Ester
Perspirin
ADVANCE
Drunk driver is made to blow through a solution of
Clue : (Multiple answer)
Sulphuric Acid
Potassium Dichromate
Silver acetate
Silver Nitrate
