Metals and non metals Worksheet-2
Fill in the blanks:
Magnesium reacts with steam evolving ________ gas.
Only those metals displace hydrogen from water/steam which are ________ hydrogen in the reactivity series.
Those metals which are below hydrogen in the reactivity series do not _______ hydrogen from water or steam.
Non-metals ______ with water releasing Hydrogen gas.
Non-metals form ______ hydrides. (Covalent/Ionic)
If non-metals like carbon,sulphur or phosphorus are put in test tube containing dilute sulphuric acid _____ gas is evolved.
Oxides like Na2O, CaO turn ____ litmus solution ____.
Oxides like P2O5, NO2 turn _____ litmus solution ____.
Nitrogen monoxide is a _____ oxide.
N2O (Dinitrogen monoxide) is a _____ oxide.
MgCl2 (Magnesium chloride) ____ electricity.
Ordinary aluminium strips are not attacked by water because of the presence of a layer of ______ on its surface.
Zinc displaces copper from copper sulphate solution because it is _____ reactive than copper .
______ is used to convert vegetable oils into ghee.
_______ is a non-metal used to preserve food materials.
_______ is a non-metal used as fungicide.
_______ is a non-metal used for making electrodes of electrolytic cells and dry cells.
An element forms an oxide of formula E2O3 which is basic in nature. Element E is a _______. (Metal/Non-metal)
P2O3 is a _____oxide.
Iron forms ______ and ____ on reacting with steam.
Do not react
Iron oxide, Hydrogen gas