Secondary colours

Correct answer: B. Orange

Explanation: On the traditional art colour wheel, orange is the secondary colour positioned between red and yellow because it is formed by mixing those two neighbouring primary colours. Therefore option B is correct. Violet lies between red and blue, while green lies between yellow and blue. The question uses both location and mixing relationship: the intermediate colour should be the result of combining the two named colours, which identifies orange unambiguously.

Correct answer: C. Violet

Explanation: The governing concept is the traditional artist’s colour wheel. Blue and red are primary colours in this school-level model, and their mixture produces violet, a secondary colour. Violet is placed between them on the wheel, so option C is correct. Green lies between yellow and blue, while orange lies between red and yellow. These positions distinguish the other choices and confirm that the answer is violet rather than a neighbouring colour.

Correct answer: B. Two

Explanation: The governing concept is the definition of a secondary colour in the traditional art colour system: it is produced by mixing two primary colours. Therefore option B is correct. For example, red plus yellow makes orange, yellow plus blue makes green, and blue plus red makes violet. One primary colour remains primary, while mixing all three is not the standard process for producing one pure secondary colour and may create a dull mixed result.

Correct answer: A. Orange

Explanation: In the traditional subtractive colour system used in school art, red and yellow are primary colours. Mixing these two produces orange, which is a secondary colour; therefore, option A is correct. Green comes from yellow and blue, while violet comes from red and blue. Blue alone is a primary colour, not the product of this mixture.

Correct answer: B. Green

Explanation: Yellow and blue are mixed to produce green in the traditional art colour wheel, so option B is correct. Green is classified as a secondary colour because it results from two primary colours. Orange is made from red and yellow, and violet from red and blue. Red is a primary colour, so it is not the result of mixing yellow and blue.

Correct answer: A. Violet

Explanation: The traditional colour wheel treats red and blue as primary colours whose mixture produces violet, also called purple in some art contexts. Thus, option A is correct. Red plus yellow produces orange, and yellow plus blue produces green. Yellow alone is a primary colour, so it cannot be the secondary colour formed by the stated pair.

Correct answer: B. Reddish orange

Explanation: Orange is produced by mixing red and yellow. If more red is added, the balance of the mixture shifts toward red, so the colour appears reddish orange; option B is correct. If yellow were greater, the result would be yellow-orange. Bluish green and light violet require different colour combinations and do not describe a red-dominant orange mixture.

Correct answer: A. Yellowish orange

Explanation: Orange is the secondary colour formed from red and yellow. Increasing the amount of yellow shifts the mixture toward yellow, producing yellowish orange, so option A is correct. Reddish orange would result from adding more red. Blue-green and red-violet are different mixed hues and cannot be produced by simply increasing yellow in orange.

Correct answer: B. When the mixture contains more blue

Explanation: Green is made by mixing yellow and blue. Increasing the proportion of blue makes the resulting hue shift toward blue-green, so option B is correct. Increasing yellow would make it yellow-green. Adding red changes the mixture in another direction, while adding white mainly lightens or tints the colour; it does not make green lean specifically toward blue.

Correct answer: C. Increase the amount of yellow

Explanation: Green is formed by mixing yellow and blue. To make the green appear yellowish, increase the proportion of yellow, so option C is correct. Increasing blue would create a bluish green. Red would alter the hue rather than produce the stated result, and black would mainly darken the mixture. The governing idea is that the larger component influences the colour bias.

Correct answer: A. When red is greater

Explanation: Violet is produced by mixing red and blue. If the amount of red is increased relative to blue, the mixture shifts toward red and appears reddish violet; therefore, option A is correct. More blue would produce a bluer violet. Yellow or green is not one of the two components used to make the standard violet mixture, so those choices do not explain the stated colour shift.

Correct answer: C. Blue

Explanation: Violet is made by mixing red and blue. To shift violet toward blue, the mixture must contain a greater proportion of blue, making option C correct. More red would produce reddish violet. Yellow and green are not the two primary components of the standard violet mixture, so increasing either would not create the described bluish-violet bias. The deciding concept is colour proportion.

Correct answer: A. To keep the mixture clean

Explanation: The governing concept is colour purity during mixing. A secondary colour is made by combining two primary colours, so paint left on the brush can add an unwanted third colour. That contamination changes the hue and may make the mixture dull or muddy. Therefore, cleaning the brush keeps the intended mixture pure. Making the brush heavy, drying paint, or polishing paper is unrelated to colour formation.

Correct answer: B. A trace of red paint remaining on the brush

Explanation: The governing concept is contamination in colour mixing. Yellow and blue normally produce green, but a trace of red left on the brush introduces a third pigment. Because red is complementary to green, it reduces the mixture’s brightness and can make the result look greyish or muddy. Pure paints, a clean palette, and careful mixing help prevent this problem, so option B is the valid cause.

Correct answer: A. A trace of blue entered it

Explanation: The governing concept is complementary-colour contamination. Orange is formed by mixing red and yellow. If even a small amount of blue enters the mixture, blue acts as orange’s complement and absorbs or neutralises some of its vividness. The result may look dull, brownish, or muddy. Clean red and yellow paints, a new brush, and a clean palette would reduce contamination rather than cause it, so A is correct.

Correct answer: A. Yellow contamination in the red or blue paint

Explanation: The governing concept is maintaining purity when mixing a secondary colour. Violet is produced from red and blue, so yellow contamination in either paint adds a third primary colour. Since yellow is complementary to violet, it can reduce the mixture’s brightness and make the result muddy or brownish. A clean brush, separate palette spaces, and suitable proportions help produce cleaner violet; therefore option A identifies the actual problem.

Correct answer: B. Three

Explanation: The governing concept is the traditional colour wheel. It shows three secondary colours, each made by mixing a pair of primary colours: red plus yellow produces orange, yellow plus blue produces green, and blue plus red produces violet. Thus the correct count is three. Two and four are incorrect counts, while six usually confuses the number of colour-wheel sectors or another colour classification with the number of secondary colours.

Correct answer: A. Warm colour

Explanation: The governing concept is the warm–cool classification of colours. Orange is a warm colour because it is made from red and yellow, and both are traditionally associated with warmth, sunlight, energy, and visual advance. Green, blue, and violet are commonly grouped as cool colours, while neutral and metallic describe other categories rather than orange’s usual family. Therefore option A is correct, although the perceived effect can also depend on surrounding colours and context.

Correct answer: A. Red and blue

Explanation: The governing concept is secondary-colour formation. On the traditional colour wheel, violet is produced by mixing the primary colours red and blue. Consequently, its appearance can carry qualities associated with both red and blue, such as warmth from red and coolness or depth from blue. Yellow and green, orange and yellow, and black and white do not form the standard pair used to create violet, so option A is correct.

Correct answer: B. Green

Explanation: The governing concept is identifying secondary colours in familiar natural forms. Green is a secondary colour formed by mixing yellow and blue, and it is commonly observed in the leaves and many parts of trees because of plant pigments. Orange and violet are also secondary colours, but they are not the usual dominant colour of healthy foliage. Red is a primary colour in the traditional model, so option B is the best answer.

Correct answer: A. Orange

Explanation: The governing concept is selecting colour to represent the warm light of a scene. Orange is a secondary colour made from red and yellow, and its warm hue is useful for showing the glow near the sun, illuminated clouds, and evening light in a sunset painting. Green is less typical for the warm sky, violet may be used in shadows or distant areas, and black is not a secondary colour. Thus option A is the best answer.

Correct answer: B. Violet

Explanation: Violet is a suitable secondary colour for depicting many varieties of grapes because grape skins are often shown in purple or violet tones. On the colour wheel, violet is produced by mixing red and blue. The artist can add white for highlights or a little black for shadows, depending on the light. Yellow, red, and blue are primary colours, not secondary colours, so violet is the best answer.

Correct answer: A. A small amount of its complementary colour

Explanation: Colour intensity, or saturation, describes how bright and strong a colour appears. A small amount of its complementary colour can reduce that intensity because the two opposing colours partially neutralise each other. For example, a little red can soften green, while a little orange can soften blue. Adding more of the same colour will not normally reduce its strength, and paper cannot change the paint mixture. Too much complementary colour may make the result muddy.

Correct answer: A. Light orange

Explanation: Adding white to orange increases its lightness, producing light orange. In colour theory, a lighter version made by adding white is called a tint. The original hue remains orange; only its value changes. Green, blue, and violet require different colour relationships or mixtures and cannot result from adding only white to orange. Therefore, option A is correct. In contrast, adding black would produce a darker shade of orange rather than a tint.

Correct answer: B. Green will become darker

Explanation: Adding black generally lowers the value or lightness of green, so the green appears darker. In art terminology, a darker version of a hue made by adding black is called a shade. White would make green lighter and create a tint, so option A gives the opposite effect. Adding black does not turn green into orange, and it cannot change a secondary colour into a primary colour. Thus, option B is correct.