The Contact Process is involved in the manufacture of 1 Nitric acid 2 Sulphuric acid 3 Ammonia 4 Caustic soda
2 4251Which of the following metals can displace hydrogen from dilute acids? 1 Zinc 2 Gold 3 Copper 4 Silver
1 9669Reaction of alcohol, with a carboxylic acid is known as 1 Substitution Reaction 2 Addition reaction 3 Esterification 4 Hydrogenation
1 2765‘Saponification involves the hydrolysis of fats and oils by 1 Water 2 Washing soda 3 Stearic acid 4 Caustic soda
1 7516Which of the following reagents gives a silver mirror test when added to aldehydes? 1 Fehling’s solution 2 Tollen’s Reagent 3 Ebaeyer’s Reagent 4 Nessler’s Reagent
1 2990Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO
1 2755Which of the following substances undergoes chemical change on heating? 1 Sodium chloride 2 Silica 3 Lead nitrate 4 Platinum wire
2 10584Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction
2 3469Water is neither acidic nor alkaline because 1 It cannot accept or donate protons 2 It boils at a high temperature 3 It can dissociate into equal number of hydrogen ions 4 It cannot donate or accept electrons
ACIO,
2 11506Superphosphate fertilizer is prepared by the reaction between 1 Calcium phosphate and Sulphuric hydroxide 2 Sodium phosphate and Sodium nitrate 3 Magnesium phosphate and Sodium nitrate 4 Sodium sulphate and Phosphoric acid
2 5611The final products of combustion of ethane are 1 Carbon and oxygen 2 Ethylene and Hydrogen 3 Water and Carbon monoxide 4 Carbon dioxide and water
2 6709Which of the following metals can displace zinc from a solution of zinc sulphate? 1 Lead 2 Magnesium 3 Iron 4 Mercury
2 4711Chemical change does not take place in case of 1 Souring of milk into curd 2 Rusting of iron in atmosphere 3 Burning of magnesium ribbon in air 4 emitting of light by a red hot platinum wire
3 10168Water gas is prepared by passing 1 Steam over white-hot coke 2 Air over red-hot coke 3 Methane over red-hot coke 4 Steam over heated sulphur
6 16399Post New General Science Questions
How can we calculate %difference in Weighing balance?
When did india conduct three under ground nuclear tests?
Who is the first female cosmonaut?
what is defination of conductivity? How much conductivity of water ? what is effect when conductity of water low or high?
When was the indian made rocket “ rohini ” launched from thumba?
171.116.0.0 VLSM require 112 ip addresses answer = 128/23 255.255.254.0 rang 2 network address 172.116.0.0 gateway 172.116.1.0 broadcast 172.116.127.0
What are cosmic rays?
What are nebulae?
what is CAPITA in accounts?
In modern science, what is 'fourth dimension'?
In which year, physical laboratory in ahmedabad was founded?
Explain the role of Science for sustainable Development
How does a RCCB work? Difference between ELCB & RCCB?
What is voltage? ?? What type of of show voltage. ?? Practillay how's voltage?
Write two characteristics of Science.
