Question
Which of the following symptoms are caused by Rice stem
borer?Solution
The caterpillar of stem borer bores into central shoot of paddy seedling and causes drying of the central shoot known as “dead heart”. When stem borer attacks in flowering stage, it causes whitehead.
Which is used to treat indigestion?
Which of the following organic compounds undergo nucleophilic substitution reaction most easily?
Which of the following element is used for the manufacture of the safety-matches?
Which of the following relation is correct?
The insecticide gammexane is chemically known as:
Which of the following does not give effervescence with sodium carbonate?
What happens to the boiling point of water at higher altitudes?
Modern periodic table has ______ groups and ______ periods.
The (O-H) bond in CH3OH is which type of bond?
Which acid is present in grapes?
