Science Write True or False

The function of a satellite launcher is based on Newton's second law of motion.

India is the first country to discover the existence of water on the moon.

The speed of liberation on the moon is less than the speed of liberation on earth.

Easter is a sweet-smelling dish.

Ethanol is all soluble in water.

Colourless ethanol is in liquid state at room temperature.

Potassium permanganate is an oxidising compound in regular use.

Substances that can give oxygen to other substances are called particulate matter.

LPG Butane is a flammable element in.

There are different common molecules for all members of the homologous range.

As one ascends in any homogeneous category, physical properties change in one direction.

Cyclohexane is a branched chain type of hydrocarbon.

Benzene is a coated unsaturated hydrocarbon.

In general, saturated compounds are more reactive than unsaturated compounds.

Two carbon atoms can always form one or two covalent bonds.

Carbon compounds contain only free chains of carbon atoms.

Your body is made up of carbon.

The number of electrons in the compound shell of a carbon atom is 4.

Baux reacts with sodium hydroxide in the Bayer process.

Halogen reacts with acid.

Gold and silver are active metals.

Diamond is a hard substance.

Cassiteite is a copper metal.

The electrolysis of alumina combines fluorspar and cryolite to increase the solubility in the precipitation method.

In the electrolytic dissipation method of alumina, the lining of graphite acts as an anode.

In the electrolytic method, a layer of highly active metal is applied to a less active metal.

Mercury, silver and gold are highly reactive metals.

Stable ionic compounds conduct electricity.

Ionic compounds are soluble in kerosene.

Electrolysis is used to obtain pure metal from impure metal.

The virtual shape of the object seen by the eye depends on the angle held by the object with the eye.

Vision defects increase the distance between the lens of the eye and the retina of the eye. There are defects in myopia.

For a healthy human eye the distant point is infinite distance.

The lens of the eye is flattened when looking at nearby objects.

The power of the magnifying glass depends on the distance of the magnifying glass.

The image of an object at an infinite distance is obtained in a real and smooth form through a convex magnifying glass.

If the incident ray is parallel to the main axis, then the refracted ray passes through the main navel.

This defect of vision can be remedied by using endoscopic magnifying glass with proper focal length.

The image of the object in the human eye is formed on the cross screen.

Convex magnifying glass is called divergent magnifying glass and concave magnifying glass is called converging magnifying glass.

The speed of light varies in different media.

Purple has the lowest refractive index.

The incident rays and refracted rays are on opposite sides of the column.

1 calorie is 4.81 joules

Humidity relative to dew point temperature is 100%.

All metals have the same specific heat capacity.

Calorimeters are used to measure specific calorific value.

1 kg of dry air at a temperature of 40 °C can hold a maximum of 49 g of water vapour.

Use calorimeters to study the inconsistent behaviour of water.

The invisible heat of evaporation is called the conversion of gas into liquid.

The dew point temperature does not depend on the amount of vapour in the air.

Electrochemicals are devices that convert electrical energy into mechanical energy.

The frequency of the alternating current is 50Hz.

Use galvanometers for electrical measurements.

Increasing the current passing through the wire decreases the magnetic field intensity.

Electrical wires and neutral wires have a 220 V potential difference.

The alternating current is a vibrating current.

If edible oil is kept well for a long time, it will get sour.

Electrical negativity is the metallic property of an element.

The properties of the metal increase as it goes down in the calculation.

Silicon is a metallic element.

The size of an atom depends on the number of compound electrons.

The metal properties of the element decrease as the spiral moves from left to right.

The number of shields decreases as the calculation goes down from top to bottom.

The K and L shells of the elements Na and Mg contain electrons.

Beryllium and calcium are alkaline soil metals.

The elements lithium and beryllium are in the same cycle because their compounds are similar.

All the elements in the halogen family are gases.

Moving from left to right, the size of the atom decreases.

Nanometers use these units to measure atoms.

The compound of the elements in group 2 is 1.

To the left of the serpentine line in the periodic table are the metal elements.

P-segment is composed of groups 1 and 2.

The modern periodic table shows the molecular values of the elements in each frame.

The modern periodic table has 1 to 7 cycles.

While designing the periodic table, Mendeleev considered the chemical and physical properties of the elements.

In Dobreiner's triangles, three elements appear to be arranged in ascending order of their atoms.

The similarity between the properties of the first and eighth elements is called the octave rule.

Mass is a qualitative measure of the inertia of an object.

The speed of release of an object does not depend on the mass of the object.

As it rises above the earth's surface, its value increases.

The value of G varies from place to place.

The value of g is highest at the equator.

The value of gravitational acceleration with the centre of the earth is zero.

If the distance between two masses is doubled, the gravitational force between them becomes less than the previous force.