Light-year’ is a unit of : 1) time 2) speed 3) distance 4) intensity of light

The first man who placed his foot on the moon is : 1) Leonov 2) Neil Armstrong 3) Michael Collins 4) James Van Allen

The highest viscosity among the following is of : 1) water 2) air 3) blood 4) honey

Milk is a poor source of : 1) calcium 2) protein 3) vitamin C 4) carbohydrate

The breath test conducted by police to check drunken driver has which one of the following on the filter paper? 1) Potassium dichromate-sulfuric acid 2) Potassium sulfuric acid, permanganate 3) Silica ...

Glucose is converted to ethyl alcohol by the enzyme : 1) maltase 2) invertase 3) zymase 4) diastase

Limewater is turned milky by : 1) CO 2) CO₂ 3) 02 4) 03

The incomplete burning of petrol and diesel produces : 1) nitric oxide 2) nitrogen dioxide 3) carbon dioxide 4) carbon monoxide

The elements present in urea are : 1) C, H, O 2) C, N, O 3) C, H, N 4) C, H, N, O

A mixture of sand and naphthalene can be separated by : 1) sublimation 2) distillation. 3) chromatography 4) fractional distillation