Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
Among the following the strongest acid is
HC ≡ CH
CH3OH
C2H6
None of the above
Metal carbonate/Metal hydrogen carbonate + Acid→ Salt +_____ + Water
Which of the following is missing in the above reaction?
Carbon dioxide
Carbon monoxide
Hydrogen
An element 'X' reacts with oxygen to produce an oxide whose solution turns red litmus blue. Which of the following could be X?
Sulphur
Magnesium
Carbon
3 Solutions A, B and C are taken in a test tube. On adding China rose indicator, A turned green, B remained colourlers whereas C turned dark pink in colour.
What is the nature of A, B and C ?
A - Acidic, B- Basic, C - Salt
A - Basic, B - Salt, C -Acidic
A - Salt, B - Basic, C - Acidic
Vinegar can be used as food preservative due to the presence of _________.
formic acid
carboxylic acid
acetic acid
Which of the following acid is found in Nettle plant?
Methanoic acid
Citric Acid
Ethanoic Acid
Oxalic acid
Sulphur Dioxide when dissolved in water forms-
Sulphur Trioxide
Sulphurous acid
Sulphuric acid
What is the pH value of acid rain?
Less than 5.6
More than 5.6
Equal to 7.0
More than 7.0
Which of the following contains Citric acid?
Tomato
Orange
Tamarind
Sour milk
Which type of medicines are used for treating indigestion?
Antibiotic
Analgesic
Antacid
Antiseptic
An acid is a substance which
donates a proton
accepts an electron pair
gives H+ in water
all of these
