A metal ion involved in stomatal regulation is

A metal ion involved in stomatal regulation is

Options

(a) iron (b) potassium (c) zinc (d) magnesium

Correct Answer:

potassium

Explanation:

Stomata are small pores in plant epidermis,present in large numbers,particularly in leaves,through […]

Thyroid deficiency in childhood leads to

Thyroid deficiency in childhood leads to

Options

(a) hypothyroidism (b) myxoedema (c) cretinism (d) thyrotoxicosis

Correct Answer:

cretinism

Explanation:

No explanation available. Be the first to write the explanation for this question by […]

Which of the following is a metalloid

Which of the following is a metalloid

Options

(a) C (b) Si (c) Ge (d) Sn

Correct Answer:

Ge

Explanation:

No explanation available. Be the first to write the explanation for this question […]

Alum in dyeing of clothes is used as

Alum in dyeing of clothes is used as

Options

(a) bleaching agent (b) fire proof material (c) mordant of colour (d) diluent

Correct Answer:

mordant of colour

Explanation:

Alums are the double salts […]

Propanone and propanal are …. Isomers

Propanone and propanal are …. Isomers

Options

(a) geometrical (b) optical (c) functional (d) none of these

Correct Answer:

functional

Explanation:

Compounds having the same molecular formula but different functional groups are called […]

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